Lichens of Gomera R-U (Flechten Gomeras)
Flechtenbilder (R)
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Ramalina bourgeana * Mont. ex Nyl. (281) On volcanic rocks. Thallus rigid, erected; lobes up to some cm diam., not linear; upper surface usually reticulately ridged; without isidia, soralia or pseudocyphellae; lower side only weakly ridged; apothecia often numerous; disc up to 1 cm diameter, flat to concave; margin crenate. A very variable species. Medulla K+ red, C-, Pd+ deep orange. E; Canary Islands; La Gomera-NW; w of Vallehermoso (hiking path Botan. Garden --> Ermita St. Clara). |
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Ramalina bourgeana Mont. ex Nyl. (281) On volcanic rocks. E; Canary Islands; La Gomera-NW; w of Vallehermoso (hiking path Botan. Garden --> Ermita St. Clara). |
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Ramalina bourgeana Mont. ex Nyl. (281) On volcanic rocks. E; Canary Islands; La Gomera-NW; w of Vallehermoso (hiking path Botan. Garden --> Ermita St. Clara). |
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Ramalina bourgeana Mont. ex Nyl. (281) On volcanic rocks. E; Canary Islands; La Gomera-NW; w of Vallehermoso (hiking path Botan. Garden --> Ermita St. Clara). |
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Ramalina bourgeana Mont. ex Nyl. (281) On volcanic rocks. Application with K and Pd. E; Canary Islands; La Gomera-NW; w of Vallehermoso (hiking path Botan. Garden --> Ermita St. Clara). |
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Ramalina bourgeana * Mont. ex Nyl. (289) On volcanic rocks. Medulla K+ red, C-, KC-, Pd+ orange. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina bourgeana Mont. ex Nyl. (289) On volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina bourgeana Mont. ex Nyl. (289) On volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina bourgeana Mont. ex Nyl. (289) On volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina bourgeana Mont. ex Nyl. (289) On volcanic rocks. Application with K and Pd. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina bourgeana * Mont. ex Nyl. (317) Wall of the house in El Tion. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Ramalina bourgeana Mont. ex Nyl. (317) Wall of the house in El Tion. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Ramalina decipiens Mont. (47) On volcanic rocks (terrace wall). Thallus 5.5 cm long; lobes up to 5 mm wide, occasionally branched, ± flat, often longitudinally striated; pseudocyphellae inconspicuous; isidia and soralia absent; apothecial disc concave; margin crenate; pycnidia common, marginal, laminal and terminal, ostioles black. Thallus K+ red, Pd+ orange. E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Ramalina decipiens Mont. (47) On volcanic rocks (terrace wall). E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Ramalina decipiens Mont. (47) On volcanic rocks (terrace wall). E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Ramalina decipiens Mont. (47) On volcanic rocks (terrace wall). Spot tests with K and Pd. E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Ramalina hamulosa Krog & Östhagen (528) Saxicolous, on volcanic rocks. Thallus fragile, consisting of some moderately branched laciniae; laciniae stramineous, shiny, terete; with divergent branchlets, terminating in nodules or hook-shaped structures. K+ orange-brown, C-, KC-, Pd+ orange. E; Canary Islands; La Gomera-W; sw of Arure (walking path to Taguluche). |
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Ramalina huei Harm. (280) On branches of Pinus canariensis. Thallus pendulous (6 cm long); laciniae up to 7 mm wide near the holdfast; pseudocyphellae laminal and lateral (conspicuous especially at the base of laciniae), when these are lateral, they often induce separation of upper and lower cortex layers, thus exposing the medulla; apothecia lateral (up to 5 mm diam.); disc deeply concave; margin occasionally with extensions. Spot tests all negative (KC+ blue-green). Often together with R. implectens. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Ramalina huei Harm. (280) On branches of Pinus canariensis. Pseudocyphellae. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Ramalina huei Harm. (280) On branches of Pinus canariensis. Apothecia. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Ramalina implectens * Nyl. (279) On branches of Pinus canariensis. Thallus (resembles Usnea spec.) subpendulous, up to 15 cm long; lobes (laciniae) strap-shaped, smooth, +- canaliculate, divergently branched, with lateral branchlets; pseudocyphellae not evident; apothecia common, in distal half of branches, up to 5 mm diam.; disc concave. Thallus K+ red, C-, Pd+ orange. Often together with R. huei. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Ramalina implectens Nyl. (279) On branches of Pinus canariensis. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Ramalina implectens Nyl. (279) On branches of Pinus canariensis. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Ramalina implectens Nyl. (279) On branches of Pinus canariensis. Application with K and Pd. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Ramalina implectens??? Nyl. (286) On vertical volcanic rocks. Thallus subpendulous, up to 8 cm long; lobes (laciniae) strap-shaped (- 1.5 mm broad), smooth, divergently branched, with lateral branchlets; pseudocyphellae not evident; apothecia not seen; pycnidia black, lateral and marginal; ostioles pale. Thallus K+ red, C-, Pd+ orange. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina implectens??? Nyl. (286) On vertical volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina implectens??? Nyl. (286) On vertical volcanic rocks. Pycnidia with pale ostioles. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina implectens??? Nyl. (286) On vertical volcanic rocks. Application wit K and Pd. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina krogiae Guissard & Sérus. (48) On volcanic rocks (terrace wall). Thallus up to 3 cm, brownish near the base; lobes solid, flat, subterete near apices, up to 5 mm broad, ends finely divided; granular soralia marginal or with coarse, corticate granules (photos 5/6); apothecia rare, lateral (photo 4). Thallus K-, Pd-. E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Ramalina krogiae Guissard & Sérus. (48) On volcanic rocks (terrace wall). E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Ramalina krogiae Guissard & Sérus. (48) On volcanic rocks (terrace wall). E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Ramalina krogiae Guissard & Sérus. (48) On volcanic rocks (terrace wall). E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Ramalina krogiae Guissard & Sérus. (48) On volcanic rocks (terrace wall). E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Ramalina krogiae Guissard & Sérus. (48) On volcanic rocks (terrace wall). E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Ramalina krogiae Guissard & Sérus. (242) On vertical volcanic rocks. Thallus up to 8 cm; lobes solid, flat, subterete near apices, ends finely divided; granular soralia marginal or with coarse, corticate granules; apothecia rare. Test spots all negative. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina krogiae Guissard & Sérus. (242) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina krogiae Guissard & Sérus. (242) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina krogiae Guissard & Sérus. (242) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina krogiae Guissard & Sérus. (242) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina nodosa Krog & Östhagen (427) On vertical volcanic rocks. Thallus saxicolous, erect to subpendulous, up to 2 cm long; laciniae stramineous, branched, subterete to terete, with numerous nodules; +-shiny; apothecia not seen. Thallus K-, C+- yellowish, KC+ yellow. Pd-. E; Canary Islands; La Gomera-NW; nnw of Vallehermoso; n Ermita de Comoto: near Chijere. |
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Ramalina nodosa Krog & Östhagen (427) On vertical volcanic rocks. Thallus saxicolous, erect to subpendulous, up to 2 cm long; laciniae stramineous, branched, subterete to terete, with numerous nodules; +-shiny; apothecia not seen. Thallus K-, C+- yellowish, KC+ yellow. Pd-. E; Canary Islands; La Gomera-NW; nnw of Vallehermoso; n Ermita de Comoto: near Chijere. |
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Ramalina nodosa Krog & Östhagen (427) On vertical volcanic rocks. Thallus saxicolous, erect to subpendulous, up to 2 cm long; laciniae stramineous, branched, subterete to terete, with numerous nodules; +-shiny; apothecia not seen. Thallus K-, C+- yellowish, KC+ yellow. Pd-. E; Canary Islands; La Gomera-NW; nnw of Vallehermoso; n Ermita de Comoto: near Chijere. |
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Ramalina nodosa Krog & Östhagen (427) On vertical volcanic rocks. Thallus saxicolous, erect to subpendulous, up to 2 cm long; laciniae stramineous, branched, subterete to terete, with numerous nodules; +-shiny; apothecia not seen. Thallus K-, C+- yellowish, KC+ yellow. Pd-. E; Canary Islands; La Gomera-NW; nnw of Vallehermoso; n Ermita de Comoto: near Chijere. |
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Ramalina pitardii Hue (241) On vertical volcanic rocks. Thallus soft, up to 4.5 cm long; holdfast not clearly delimited; laciniae (lobes) up to 3 mm broad, hollow in parts (inflated), often fenestrate and perforate (caused by breaking pseudocyphellae); no soralia but soredia emerging on inside surfaces of the lobes; apothecia not seen. Spot tests all negative. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina pitardii Hue (241) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina pitardii Hue (241) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina pitardii Hue (241) On vertical volcanic rocks. Thallus soft, up to 2 cm long; laciniae (lobes) up to 3 mm broad, hollow in parts (inflated), often fenestrate and perforate (caused by breaking pseudocyphellae); no soralia/isidia; apothecia subapical/apical, spurred (up to 5 mm diam.); disc concav to flat. Spot tests: K-, C-, KC+ gelb; Pd-. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina pitardii Hue (241) On vertical volcanic rocks. Lower side. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina pitardii Hue (241) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina pitardii Hue (241) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina pitardii Hue (241) On vertical volcanic rocks. Thallus soft, up to 4 cm long; laciniae (lobes) up to 2 mm broad, hollow in parts (inflated), often fenestrate and perforate (caused by breaking pseudocyphellae); no soralia/isidia; apothecia subapical/apical, spurred (up to 5 mm diam.); disc flat to slightly convex. Thallus P+ orange. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina pitardii Hue (241) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina pitardii Hue (241) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (40) On volcanic rocks. Thallus up to 5 cm, erect, branched, resembling R. farinacea; lobes flattened; soralia marginal, well delimited, rounded or elliptical, concave to flat; with coars granular soredia, sometimes with projections (photo 4); apothecia rare, laminal marginal or subterminal (photo 5). Thallus K+- yellowish; soralia Pd+ orange (red). E; Canary Islands; La Gomera-M; e of Chipude: Fortaleza (via ferrata). |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (40) On volcanic rocks. E; Canary Islands; La Gomera-M; e of Chipude: Fortaleza (via ferrata). |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (40) On volcanic rocks. E; Canary Islands; La Gomera-M; e of Chipude: Fortaleza (via ferrata). |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (40) On volcanic rocks. E; Canary Islands; La Gomera-M; e of Chipude: Fortaleza (via ferrata). |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (40) On volcanic rocks. E; Canary Islands; La Gomera-M; e of Chipude: Fortaleza (via ferrata). |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (244) On vertical volcanic rocks. Thallus up to 6 cm, erect, branched, resembling R. farinacea; lobes flattened; soralia marginal, well delimited, rounded or elliptical, concave to flat; with coars granular soredia. Thallus K+ red, C-; thallus/soralia Pd+ orange. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (244) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (244) On vertical volcanic rocks. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (244) On vertical volcanic rocks. Soralia. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (244) On vertical volcanic rocks. Application with K and Pd. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (287) On vertical volcanic rocks. Thallus up to 3 cm, erect, branched, resembling R. farinacea; lobes flattened, terete at apices; soralia marginal, well delimited, rounded or elliptical, flat to convex; with coars granular soredia; sometimes with projections. Thallus K+ yellow (soralia K+ red), C-, KC-; thallus/soralia Pd+ orange --> reddish. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (287) On vertical volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (287) On vertical volcanic rocks. Soralia, projections. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Ramalina subfarinacea (Nyl. ex Cromb.) Nyl. (287) On vertical volcanic rocks. Application with K and Pd. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Rhizocarpon geographicum (L.) DC. (522) Saxicol, on volcanic rocks. Thallus areolate, often mosaic-forming; areoles delimited by a black hypothallus; apothecia black, irregular in shape, up to 1.5 mm diam., sitting between the areoles. Medulla K-, KC and C red (or no reaction), Pd+ orange-red (or no reaction); UV bright orange. E; Canary Islands; La Gomera-MSW; ese of Chipude: hiking path between Fortaleza and Igualero. |
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Rhizocarpon geographicum (L.) DC. (522) Saxicol, on volcanic rocks. E; Canary Islands; La Gomera-MSW; ese of Chipude: hiking path between Fortaleza and Igualero. |
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Rhizocarpon geographicum (L.) DC. (537) Saxicol, on volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Rhizocarpon geographicum (L.) DC. (537) Saxicol, on volcanic rocks. Ascospores. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Rinodina beccariana var. lavicola (Steiner) Matzer & Mayrhofer (485) Saxicol; on volcanic rocks. Thallus crustose, pale grey, areolate; apothecia (-1 mm diam.), semi-immersed at first, later sessile; disc black, +- flat; thalline margin excluded with age, proper margin lecideine, persistent; epithecium brown; hymenium colourless (110 μm); hypothecium colourless; asci 8-spored; ascospores 1-septate, brown, 17-24.5 x (7.7-14 μm), Pachysporaria-type (with rounded lumina); photobiont green. Thallus K+ yellow, C-, KC+ orange, P+- yellow. E; Canary Islands; La Gomera-NNW; se of Vallehermoso; nw of El Tion; near Garabato. (Ident. V. Wirth). New to La Gomera. |
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Rinodina beccariana var. lavicola (Steiner) Matzer & Mayrhofer (485) Saxicol; on volcanic rocks. E; Canary Islands; La Gomera-NNW; se of Vallehermoso; nw of El Tion; near Garabato. (Ident. V. Wirth). |
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Rinodina beccariana var. lavicola (Steiner) Matzer & Mayrhofer (485) Saxicol; on volcanic rocks. E; Canary Islands; La Gomera-NNW; se of Vallehermoso; nw of El Tion; near Garabato. (Ident. V. Wirth). |
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Rinodina beccariana var. lavicola (Steiner) Matzer & Mayrhofer (485) Saxicol; on volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-NNW; se of Vallehermoso; nw of El Tion; near Garabato. (Ident. V. Wirth). |
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Roccella fuciformis * (L.) DC. (283) On volcanic rocks. Thallus consisting of flat and smooth branches; soralia marginal, well delimited, granular; holdfast black and white. Cortex C-; subcortex C-; soralia C+ red. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Roccella fuciformis * (L.) DC. (283) On volcanic rocks. Together with R. tinctoria. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Roccella phycopsis * (Ach.) Ach. (319) On a house wall, made of volcanic rocks. Thallus consisting of terete, foveate or nearly smooth branches; soralia well delimited, with granular soredia; holdfast yellow. Thallus K-; cortex C+ red; soralia C+ red !). E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Roccella phycopsis (Ach.) Ach. (319) On a house wall, made of volcanic rocks. Holdfast. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Roccella phycopsis (Ach.) Ach. (319) On a house wall, made of volcanic rocks. Application with C. (The red color fades very quickly). E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Roccella tinctoria * DC. (282) On volcanic rocks. Thallus consisting of terete, foveate or smooth branches; soralia well delimited, granular; holdfast black and white. Thallus K-; cortex C-; subcortex C+ red; soralia C+ red. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Roccella tinctoria * DC. (282) On volcanic rocks. R. tinctoria together with R. fuciformis. E; Canary Islands; La Gomera-NW; hiking path between Vallehermoso (Botanical Garden) and Ermita Santa Clara. |
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Roccella tinctoria DC. (285) On volcanic rocks. Cortex C-; subcortex C+ red; soralia C+ red. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Roccella tinctoria * DC. (320) On a house wall, made of volcanic rocks. Thallus consisting of terete, foveate or smooth branches; no soralia; apothecia in statu nascendi, disc pruinose; holdfast brownish. Thallus K-; cortex C-; subcortex C+ red. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Roccella tinctoria DC. (320) On a house wall, made of volcanic rocks. Holdfast brown. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Roccella tinctoria DC. (320) On a house wall, made of volcanic rocks. Initial stages of apothecia. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Roccella tinctoria DC. (426) Saxicolous, on volcanic rocks. Holdfast dark; cortex C-; soralia C+ red. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Roccella tinctoria DC. (426) Saxicolous, on volcanic rocks. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Roccella tinctoria DC. (426) Saxicolous, on volcanic rocks. With an apothecium; soralia small.. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Rufoplaca arenaria Arup, Söchting & Fröden (417) (syn. Caloplaca arenaria/subpallida). Saxicolous, on volcanic rocks. Thallus inconspicuous; owergrowing other crustose lichens; apothecia up to 0,7 mm diam., rounded to flexuose, disc flat, dark (red)orange; margin prominent, persistent, sometimes minutely crenulate, slightly paler than disc; asci 8-spored; ascospores colourless, polarilocular (10.5-14 x 7-8.8 µm); photobiont chlorococcoid. Thallus K-, apothecia: K+ purple. Characterized by the orange-red disc, with a persistent margin and a thin, inconspicuous thallus. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Rufoplaca arenaria Arup, Söchting & Fröden (417) (syn. Caloplaca arenaria/subpallida). Saxicolous, on volcanic rocks. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Rufoplaca arenaria Arup, Söchting & Fröden (417) (syn. Caloplaca arenaria/subpallida). Saxicolous, on volcanic rocks. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Rufoplaca arenaria Arup, Söchting & Fröden (417) (syn. Caloplaca arenaria/subpallida). Saxicolous, on volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Rufoplaca arenaria (Pers.) Arup, Söchting & Fröden (434) (syn. Caloplaca arenaria/subpallida). Saxicolous, on volcanic rocks. Thallus inconspicuous, +- immersed in substratum, pale grey; apothecia up to 0.7 mm diam., rounded to flexuose, disc flat, dark orange; proper margin +- elevated, persistent, concolourous; ascospores polarilocular, septum 4-6 µm (13.3- 16.5 x 7.0-7,7µm). Thallus K-, apothecia: K+ purple. E; Canary Islands; La Gomera-NW; nnw of Vallehermoso; n of the Ermita de Coromoto; surroundings of Chijere. |
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Rufoplaca arenaria (Pers.) Arup, Söchting & Fröden (434) Saxicolous, on volcanic rocks. E; Canary Islands; La Gomera-NW; nnw of Vallehermoso; n of the Ermita de Coromoto; surroundings of Chijere. |
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Rufoplaca arenaria (Pers.) Arup, Söchting & Fröden (434) Saxicolous, on volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-NW; nnw of Vallehermoso; n of the Ermita de Coromoto; surroundings of Chijere. |
Flechtenbilder (S)
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Sanguineodiscus aractinus (Fr.) I.V. Frolov & Vondrák (420) (syn. Caloplaca aractina). Saxicolous; on volcanic rocks. Thallus brownish-grey, areolate; apothecia up to 0.7 mm diam.; disc rusty, flat to convex; proper margin inconspicuous, disappearing with age; thalline margin grey, persistent; epithecium brown; hymenium colourless (60 µm); hypothecium colourless; asci 8-spored; ascospores colourless, polarilocular (10.9-13.3 x 7.0-7.7 µm); septum wide. Thallus K-; apothecia K+ red. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. New to La Gomera. |
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Sanguineodiscus aractinus (Fr.) I.V. Frolov & Vondrák (420) (syn. Caloplaca aractina). Saxicolous; on volcanic rocks. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Sanguineodiscus aractinus (Fr.) I.V. Frolov & Vondrák (420) (syn. Caloplaca aractina). Saxicolous; on volcanic rocks. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Sanguineodiscus aractinus (Fr.) I.V. Frolov & Vondrák (420) (syn. Caloplaca aractina). Saxicolous; on volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Squamarina cartilaginea * (With.) P. James (273) On volcanic rocks. Thallus squamulose; squamules greenish yellow, thick, overlapping, pruinose (pruina mainly on the margins); lower surface dark; apothecia not very common, 3 mm diam, disc brownish to reddish brown; margin entire, often excluded with age. Medulla Pd+ yellow or Pd-. E; Canary Islands; La Gomera-MS; e of Imada: El Azadoe. |
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Squamarina cartilaginea * (With.) P. James (273) On volcanic rocks. E; Canary Islands; La Gomera-MSW; ese of Chipude: hiking path between Fortaleza and Igualero; se of the little brook. |
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Squamarina lentigera * (Weber) Poelt (18) On calcareous soil. Thallus rosette-forming; squamules whitish to ochre, covered with a white pruina (especially at the thalline margins); margins turned upward; apothecia 1.5-2 mm diam.; thalline exciple entire, thick at first, later almost disappearing; proper exciple inconspicuous. No spot reactions. E; Canary Islands; La Gomera-NW: Village of Epina. |
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Squamarina lentigera (Weber) Poelt (18) On calcareous soil. E; Canary Islands; La Gomera-NW: Village of Epina. |
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Squamarina lentigera (Weber) Poelt (18) On calcareous soil. E; Canary Islands; La Gomera-NW: Village of Epina. |
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Squamarina lentigera (Weber) Poelt (18) On calcareous soil. E; Canary Islands; La Gomera-NW: Village of Epina. |
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Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén (467) (Caloplaca s.; Caloplaca irrubescens). On strongly eroded basaltic rocks. Thallus consisting of small patches, areolate; on a black hypothallus; apothecia up to 0.5 mm diam. (looking like golden stars on a black sky); proper margin concolorous with disc, becoming excluded with age; epithecium orange-brown; hymenium colourless; hypothecium colourless; ascospores polarilocular (11.2-15.8 x 7.0-9.1 µm); septum 1.8-5.3 µm. Thallus and apothecia K+ red. E; Canary Islands; La Gomera-MS; e of Imada: El Azadoe. |
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Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén (467) (Caloplaca s.; Caloplaca irrubescens). On strongly eroded basaltic rocks. E; Canary Islands; La Gomera-MS; e of Imada: El Azadoe. |
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Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén (467) (Caloplaca s.; Caloplaca irrubescens). On strongly eroded basaltic rocks. E; Canary Islands; La Gomera-MS; e of Imada: El Azadoe. |
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Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén (467) (Caloplaca s.; Caloplaca irrubescens). On strongly eroded basaltic rocks. E; Canary Islands; La Gomera-MS; e of Imada: El Azadoe. |
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Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén (467) (Caloplaca s.; Caloplaca irrubescens). On strongly eroded basaltic rocks. Microscopic details. E; Canary Islands; La Gomera-MS; e of Imada: El Azadoe. |
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Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén (519) (Caloplaca s.; Caloplaca irrubescens). Saxicolous; on basaltic rocks. Asci 8-spored; ascospores colourless to brown (12.3-15.8 x 5.3-9.1 µm); septum 0.8-3.6 µm. E; Canary Islands; La Gomera-MSW; ese of Chipude: hiking path between Fortaleza and Igualero; se of the little brook. |
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Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén (519) (Caloplaca s.; Caloplaca irrubescens). Saxicolous; on basaltic rocks. Microscopic details. E; Canary Islands; La Gomera-MSW; ese of Chipude: hiking path between Fortaleza and Igualero; se of the little brook. |
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Stereocaulon azoreum * (Schaer.) Nyl. (339) On volcanic rocks. Thallus erect; pseudopodetia branched; phyllocladia granular to squamulose; neither isidiate nor sorediate; apothecia up to 1 mm diam.. Thallus K+ yellow, Pd+ orange-reddish. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Stereocaulon azoreum (Schaer.) Nyl. (339) On volcanic rocks. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Stereocaulon azoreum (Schaer.) Nyl. (339) On volcanic rocks. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Stereocaulon azoreum (Schaer.) Nyl. (339) On volcanic rocks. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Stereocaulon azoreum (Schaer.) Nyl. (339) On volcanic rocks. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Stereocaulon azoreum (Schaer.) Nyl. (339) On volcanic rocks. Apothecium. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Stereocaulon azoreum (Schaer.) Nyl. (339) On volcanic rocks. Application with K and Pd. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Stereocaulon dactylophyllum Flörke (41) On volcanic rocks. Thallus consisting of +- erect, +- terete pseudopodetia (-3.5 cm tall), solid, without tomentum; covered with numerous cylindrical to coralloid protuberances (phyllocladia), resembling to isidia with dark tips; without apothecia (usually numerous). Thallus K+ yellow (my first application showed reddish-brown colour; C-; KC-; Pd + yellow. E; Canary Islands; La Gomera-M; e of Chipude: Fortaleza (via ferrata). |
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Stereocaulon dactylophyllum Flörke (41) On volcanic rocks. E; Canary Islands; La Gomera-M; e of Chipude: Fortaleza (via ferrata). |
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Stereocaulon dactylophyllum Flörke (41) On volcanic rocks. E; Canary Islands; La Gomera-M; e of Chipude: Fortaleza (via ferrata). |
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Stereocaulon dactylophyllum Flörke (41) On volcanic rocks. Two spot tests with K and with Pd. E; Canary Islands; La Gomera-M; e of Chipude: Fortaleza (via ferrata). |
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Sticta canariensis (Flörke) Delise (259) (morphotype S. dufourii with cyanobacteria). On mossy Ilex canariensis. Lobes incised; margins with blue-green isidia (flattened) and small lobules; lower surface pale brown, with an dense tomentum; cyphellae rounded. Spot reactions negative. E; Canary Islands; La Gomera-NW; n of the Bar Epina: hiking path between the large antenna and Ermita Santa Clara. |
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Sticta canariensis (Flörke) Delise (259) (morphotype S. dufourii with cyanobacteria). E; Canary Islands; La Gomera-NW; n of the Bar Epina: hiking path between the large antenna and Ermita Santa Clara. |
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Sticta canariensis * (Flörke) Delise (362) (morphotype S. dufourii with cyanobacteria). On Laurus novocanariensis. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Sticta canariensis (Flörke) Delise (362) (morphotype S. dufourii with cyanobacteria). On Laurus novocanariensis. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Sticta canariensis (Flörke) Delise (362) (morphotype S. dufourii with cyanobacteria). On Laurus novocanariensis. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Sticta canariensis (Flörke) Delise (393) (morphotype S. dufourii with cyanobacteria). E; Canary Islands; La Gomera-NW; n of the Bar Epina: hiking path between the large antenna and Ermita Santa Clara. |
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Sticta canariensis (Flörke) Delise (393) (morphotype S. dufourii with cyanobacteria). E; Canary Islands; La Gomera-NW; n of the Bar Epina: hiking path between the large antenna and Ermita Santa Clara. |
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Sticta canariensis (Flörke) Delise (393) (morphotype S. dufourii with cyanobacteria). Lower surface. E; Canary Islands; La Gomera-NW; n of the Bar Epina: hiking path between the large antenna and Ermita Santa Clara. |
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Sticta fuliginosa (Hoffm.) Ach. (17) On Laurus novocanariensis. Thallus up to 5 cm diam., ± single-lobed; lobes rounded (to 3 cm wide); upper surface with scattered cylindrical to coralloid isidia; lower side brown, with conspicuous, rounded cyphellae. Spot tests negative. (Very similar is S. sylvatica, but the latter has uneven lobe margins and is more-lobed when mature). E; Canary Islands; La Gomera-NW; n of the Bar Epina: surrounding of the large antenna. |
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Sticta fuliginosa (Hoffm.) Ach. (17) On Laurus novocanariensis. Upper surface with corraloid isidia. E; Canary Islands; La Gomera-NW; n of the Bar Epina: surrounding of the large antenna. |
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Sticta fuliginosa (Hoffm.) Ach. (17) On Laurus novocanariensis. Lower surface with tomentum and cyphellae. E; Canary Islands; La Gomera-NW; n of the Bar Epina: surrounding of the large antenna. |
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Sticta fuliginosa (Hoffm.) Ach. (409) On Laurus novocanariensis. E; Canary Islands; La Gomera-M: Pajarito. |
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Sticta limbata (Sm.) Ach. (403) Corticol, on Erica arborea. Thallus consisting of large lobes (usually few); lobes (up to 1-2 cm wide) with rounded margins; soralia blue-grey, marginal (occasionally also laminal); lower surface pale brown, pubescent, with limited white cyphellae. Spot tests negative. E; Canary Islands; La Gomera-M: Pajarito. |
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Strigula decipiens (Malme) P.M. Mc Carthy (337) On volcanic rocks. Thallus brownish-greenish-grey, forming rounded colonies up to 1.5 cm diam., areolate in the center; prothallus whitish; Perithecia numerous, 1-3 per areole, ca. 1/3 immersed in the thallus, +- black; ostioles apical, inconspicuous; paraphyses simple; asci fissitunicate, 8-spored (?), 70 µm; ascospores colourless, 5-septate, fusiform, often tapering towards the proximal end, (26.6-31.5 x 3.5-4.6 µm). Photobiont: Trentepohlia. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Strigula decipiens (Malme) P.M. Mc Carthy (337) On volcanic rocks. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Strigula decipiens (Malme) P.M. Mc Carthy (337) On volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Strigula decipiens (Malme) P.M. Mc Carthy (337) On volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
Flechtenbilder (T)
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Teloschistes chrysophthalmus (L.) Th. Fr. (34) On twigs of dead Cistus monspeliensis. Lobes flattened; upper surface yellow to grey-orange, lower surface paler; lobes with spinules; apothecia abundant, short stalked, margins with numerous spinules (resembles a golden eye). Thallus K+ red. E; Canary Islands; La Gomera-M; e of Chipude: n of Fortaleza. |
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Teloschistes chrysophthalmus (L.) Th. Fr. (526) On twigs of dead Cistus monspeliensis. E; Canary Islands; La Gomera-M; e of Chipude: n of Fortaleza. |
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Teloschistes flavicans * (Sw.) Norm. (180405) On volcanic rocks. Thallus fructicose, richely branched; branches (0.5-1 mm) rounded, flattened or angled. Cortex K+ purple. E; Canary Islands; La Gomera-NW; n of the Bar Epina: hiking path between the large antenna and Ermita Santa Clara. |
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Teloschistes flavicans * (Sw.) Norm. (394) On volcanic rocks. Thallus fructicose, richely branched; branches (0.5-1 mm) rounded, flattened or angled. Cortex K+ purple. E; Canary Islands; La Gomera-NW; n of the Bar Epina: hiking path between the large antenna and Ermita Santa Clara. |
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Tephromela atra (Huds.) Hafellner (536) Saxicolous; on volcanic rocks. Thallus areolate; apothecia lecanorine, disc black, plane; margin flexuose; epithecium dark red-brown; hymenium purple-violet; hypothecium dark; asaci 8-spored; ascospores colourless, simple (9.5-11.2 x 7.0-9.1 µm). Thallus K+ yellow, C-, KC-; Pd-. E; Canary Islands; La Gomera-W; sw of Arure; hiking path to Taguluche. |
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Tephromela atra (Huds.) Hafellner (536) Saxicolous; on volcanic rocks. E; Canary Islands; La Gomera-W; sw of Aruure; hiking path to Taguluche. |
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Tephromela atra (Huds.) Hafellner (536) Saxicolous; on volcanic rocks. E; Canary Islands; La Gomera-W; sw of Aruure; hiking path to Taguluche. |
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Tephromela atra (Huds.) Hafellner (536) Saxicolous; on volcanic rocks. Microscopic deteils. E; Canary Islands; La Gomera-W; sw of Aruure; hiking path to Taguluche. |
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Tephromela atra (Huds.) Hafellner (541) Saxicolous; on volcanic rocks. Saxicolous; on volcanic rocks. Thallus areolate; apothecia lecanorine, disc black, plane; margin flexuose; epithecium dark red-brown; hymenium purple-violet; hypothecium dark; asaci 8-spored; ascospores colourless, simple (9.5-11.2 x 7.0-9.1 µm). Thallus K+ yellow, C-, KC-; Pd-. E; Canary Islands; La Gomera-W; sw of Aruure; hiking path to Taguluche. |
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Tephromela atra (Huds.) Hafellner (541) Saxicolous; on volcanic rocks. E; Canary Islands; La Gomera-W; sw of Aruure; hiking path to Taguluche. |
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Tephromela atra (Huds.) Hafellner (541) Saxicolous; on volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-W; sw of Aruure; hiking path to Taguluche. |
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Tephromela atra (Huds.) Hafellner (541) Saxicolous; on volcanic rocks. Hymenium dark; the hymenium of the similar Lecanora gangaleoides is pale green. E; Canary Islands; La Gomera-W; sw of Aruure; hiking path to Taguluche. |
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Tephromela grumosa (Pers.) Hafellner & Roux (424) Saxicolous; on volcanic rocks. Thallus thick, cracked/areolate, areoles (-1.5 mm diam.), covered with granular soredia (blue-grey); apothecia not seen. Thallus/soralia K+ yellow, C-, KC-, Pd-. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. (New to La Gomera). |
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Tephromela grumosa (Pers.) Hafellner & Roux (424) Saxicolous; on volcanic rocks. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. (New to La Gomera). |
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Tephromela grumosa (Pers.) Hafellner & Roux (424) Saxicolous; on volcanic rocks. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. (New to La Gomera). |
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Thalloidima toepfferi * Stein (56) On rock fissures (terrace wall) filled with soil. Tallus squamulose; squamules up to 4 mm diam., bullate; upper surface epruinose, with conspicuous white pseudocyphellae, lacking pores; apothecia up to 3 mm diam., plane and marginate when young, becoming convex and immarginate with age; disc slightly pruinose or epruinose. Epithecium K+ violet, N+ violet. (Together with T. physaroides the only pseudocyphellate species). E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. Image width: 29 mm. |
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Thalloidima toepfferi * Stein (56) On rock fissures (terrace wall) filled with soil. E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Thalloidima toepfferi Stein (56) On rock fissures (terrace wall) filled with soil. E; Canary Islands; La Gomera-MW; hiking path between Las Hayas and El Cercado. |
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Thalloidima toepfferi Stein (303) On mossy rock fissures filled with soil. Tallus squamulose; squamules bullate; upper surface sometimes +-pruinose, with conspicuous white pseudocyphellae (up to 0.4. mm diam.); cortex cellular (see microscopic details); apothecia up to 3 mm diam., plane and marginate when young, becoming convex and immarginate with age; disc slightly pruinose or epruinose. Epithecium grey; hymenium colourless (50-80 µm); hypothecium dark brown; asci 8-spored; paraphyses +- unbranched; ascospores colourless, 1-septate (16.8 - 20.3 x 3.5 - 4.6 µm), +- fusiform, often with one end +- rounded, the other pointed. (Together with T. physaroides the only pseudocyphellate species). E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Thalloidima toepfferi Stein (303) On mossy rock fissures filled with soil. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Thalloidima toepfferi Stein (303) On mossy rock fissures filled with soil. Microscopic details. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Thalloidima toepfferi Stein (338) On mossy soil. (Wet specimen). E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. E; Canary Islands; La Gomera-MS; n Playa Santiago; close to Las Toscas: junction to Benchijigua. |
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Thalloidima toepfferi Stein (338) On mossy soil. E; Canary Islands; La Gomera-MS; n Playa Santiago; close to Las Toscas: junction to Benchijigua. |
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Thalloidima toepfferi Stein (338) On mossy soil. E; Canary Islands; La Gomera-MS; n Playa Santiago; close to Las Toscas: junction to Benchijigua. It is my impression tha T. toepfferi is the most common Toninia in La Gomera. (I have seen it many times at different places). |
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Thalloidima toepfferi * Stein (512) Thallus squamulose, black, +- shiny; squamules scattered, up to 4 mm wide, bullat; with white pseudocyphellae (up to 0.3 mm diam; apothecia rare, margin lecideine, constricted at base, up to 4 mm diam; disc weakly pruinose; epithecium dark grey; hymenium colourless, 40-55 µm; paraphyses: the apical cell swollen; hypothecium reddish brown; asci 8-spored; ascospores 1-septate, colourless, fusiform/bacilliform, 14.0-19.3 x 3.5-4.9 µm. Photobiont Nostoc. Spot tests negative. E; Canary Islands; La Gomera-M; e of Chipude: n of Fortaleza. |
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Thalloidima toepfferi * Stein (512) E; Canary Islands; La Gomera-M; e of Chipude: n of Fortaleza. |
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Thalloidima toepfferi * Stein (512) E; Canary Islands; La Gomera-M; e of Chipude: n of Fortaleza. |
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Thalloidima toepfferi * Stein (512) E; Canary Islands; La Gomera-M; e of Chipude: n of Fortaleza. |
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Thalloidima toepfferi * Stein (512) Microscopic details. E; Canary Islands; La Gomera-M; e of Chipude: n of Fortaleza. |
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Toninia tristis subsp. pseudotabacina Timdal (463a) On base rich soil. Thallus squamulose, chestnut brown to dark brown; . squamules bullate, often with punctiform pores; upper cortex with a parplectenchymatous layer; apothecia constricted a base, margin lecideine; lecideine; epithecium blue-green; hymenium colourless, 45 - 55 µm; paraphyses thickened at apices; hypothecium bright brownish; asci 8-spored, ascospores 1-celled, colourless, ellipsoid, 11.9 -14.7 x 4.6-6.3 µm; photobiont chlorococcoid. Spot tests negative. E; Canary Islands; La Gomera--MS; se of Imada: El Azadoe. |
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Toninia tristis subsp. pseudotabacina Timdal (463a) On base rich soil. E; Canary Islands; La Gomera--MS; se of Imada: El Azadoe. |
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Toninia tristis subsp. pseudotabacina Timdal (463a) On base rich soil. Specimen with an apothecium (1.5 mm diam.). E; Canary Islands; La Gomera--MS; se of Imada: El Azadoe. |
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Toninia tristis subsp. pseudotabacina Timdal (463a) On base rich soil. E; Canary Islands; La Gomera--MS; se of Imada: El Azadoe. |
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Toninia tristis subsp. pseudotabacina Timdal (463a) On base rich soil. Microscopic details. E; Canary Islands; La Gomera--MS; se of Imada: El Azadoe. |
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Tuckermannopsis chlorophylla (Willd.) Hale (404) Corticol; on Erica arborea. Lobes with marginal soralia; lower side pale brownn, shiny; with few, simple rhizines; without tomentum. Photobiont green. E; Canary Islands; La Gomera-M: Pajarito. |
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Tuckermannopsis chlorophylla (Willd.) Hale (404) Corticol; on Erica arborea. E; Canary Islands; La Gomera-M: Pajarito. |
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Tuckermannopsis chlorophylla (Willd.) Hale (404) Corticol; on Erica arborea. Lower surface E; Canary Islands; La Gomera-M: Pajarito. |
Flechtenbilder (U)
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Unknown crustose species (288) On mossy soil between Toninia toepfferi (303). Thallus ecorticate, +- sorediate; apothecia dark grey; up to 0.5 mm diam.; without a margin, convex to semi-globose from beginning; epithecium slightly brown; hymenium colourless (35-40 µm); hypothecium colourless; asci >4-spored; ascospores colourless (but brownish with age), narrow ellipsoid, 1-septate (12.6 - 17.8 x 3.2 - 4.2 µm). Thallus K+ yellow, C-, Pd-. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Unknown crustose species (288) On mossy soil between Toninia toepfferi (303). E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Unknown crustose species (288) On mossy soil between Toninia toepfferi (303). E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Unknown crustose species (288) On mossy soil between Toninia toepfferi (303). E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Unknown crustose species (288) On mossy soil between Toninia toepfferi (303). E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Unknown crustose species (288) On mossy soil between Toninia toepfferi (303). Application with K. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Unknown crustose species (288) On mossy soil between Toninia toepfferi (303). Microscopic details. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Unknown crustose species (335) On volcanic rocks. Thallus areolate; prothallus black; apothecia black (up to 2.3 mm diam.), constricted at base; often clustered; margin lecideine, prominent, persistent, irregularly bent; disc black, pruinose; epithecium olive; hymenium colourless (88 µm); paraphyses anastomosing; hypothecium colourless; asci 8-spored (81 µm); ascospores colourless (with perispor?), simple (10.5-21.0 x 6.3-9.5 µm). Thallus K+ yellow, C-, KC+ orange; Pd-; margin and upper part of hymenium POL+. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Unknown crustose species (335) On volcanic rocks. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Unknown crustose species (335) On volcanic rocks. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Unknown crustose species (335) On volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Unknown crustose species (350) On volcanic rocks. Thallus areolate; apothecia black (up to 2.5 mm diam.), +- immersed; often clustered; margin lecideine, prominent, persistent; disc black, pruinose, flat to convex, uneven; epithecium olive-brown; hymenium colourless (100-130 µm); paraphyses anastomosing; hypothecium colourless; asci 8-spored (81 µm); ascospores colourless (with perispor), simple (17.5-21.0 x 7.0-9.8 µm). Thallus K+- yellowish, C-, KC-, Pd-. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Unknown crustose species (350) On volcanic rocks. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Unknown crustose species (350) On volcanic rocks. Microscopic details. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Unknown crustose species (372) On bark of Castanea sativa. Thallus thin, uneven; apothecia black, up to 1.2 mm diam.; Photobiont Trentepohlia (?), (7.7-10.9 x 9.8 µm); margin lecideine, irregular, persistent; disc black, flat to slightly convex; epithecium olive, hymenium colourless (55 µm), with oil droplets (?); hypothecium grey; asci 8-spored; paraphyses +- parallel; ascospores simple, colourless (14.0-15.8 x 7.0-8.4 µm). Thallus K-, C-, KC+- yellowish, Pd-. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Unknown crustose species (372) On bark of Castanea sativa. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Unknown crustose species (372) On bark of Castanea sativa. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Unknown crustose species (372) On bark of Castanea sativa. Microscopic details. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Unknown crustose species (372) On bark of Castanea sativa. Microscopic details. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Unknown squamulose species (425) Saxicolous, on volcanic rocks. Thallus squamulose; squamules up to 1 mm diam., attached to the substratum or ascending; flat when young, later convex; lower side black; photobiont green. Thallus K+ yellow, C-, KC-, Pd-. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Unknown squamulose species (425) Saxicolous, on volcanic rocks. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Unknown squamulose species (425) Saxicolous, on volcanic rocks. E; Canary Islands; La Gomera-M; R16 between Casa Olsen and Imada: Lomo de las Cardos. |
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Usnochroma scoriophilum * (A. Massal.) Søchting, Arup & Frödén (Caloplaca scoriophila) (180411) On volcanic rocks. Thallus yellow-green, effigurated; areoles and "lobes" convex (difference to U. carphinea); apothecial disc orange-red, flat when young, later convex; margin lecanorine (concolorous with thallus); spores ellipsoid, polarilocular. Thallus KC+ (faintly red); apothecial disc K+ red. E; Canary Islands; La Gomera-SW; ssw of Chipude: close to Ermita N.S. de Guadalupe. |
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Usnochroma scoriophilum (A. Massal.) Søchting, Arup & Frödén (Caloplaca scoriophila) (464) On volcanic rocks. E; Canary Islands; La Gomera-MS; se of Imada: El Azadoe |
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Usnochroma scoriophilum (A. Massal.) Søchting, Arup & Frödén (Caloplaca scoriophila) (545) On volcanic rocks. E; Canary Islands; La Gomera-W; sw of Arure: hiking path down to Taguluche. |