Lichens of Gomera E-H (Flechten Gomeras)
Flechtenbilder (F)
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Flavoparmelia caperata * (L.) Hale (295) On volcanic rocks. Thallus up to 15 cm in diameter; lobes up to 1 cm wide, wrinkled (mainly at the center), whith coarse soralia; apothecia rare; lower surface black (center), brown at the margins; rhizines simple. Cortex K+ yellow, medulla K-, C- (difference to P. flaventior), Pd+ orange. Very similar is P. soredians but this species has more adpressed lobes and farinose soralia; medulla K+ red). E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Flavoparmelia caperata * (L.) Hale (295) On volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Flavoparmelia caperata (L.) Hale (295) On volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Flavoparmelia caperata (L.) Hale (295) On volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Flavoparmelia caperata (L.) Hale (295) On volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Flavoplaca oasis * (A. Massal.) Arup, Frödén & Søchting (330) (Caloplaca oasis). On a concrete wall. Thallus indisctinct, consisting of small irregular, yellowish spots; apothecia small (up to 0.5 mm diam.); margin lighter than disc; epithecium orange-brown; hymenium colourless (55 µm); hypothecium colourless; asci 8-spored (46 µm); ascospores polarilocular, broad ellipsoid (9.8-12.6 x 5.3-7.0 µm); septum3.5-4.2 µm). All yellow parts K+ red. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. New to La Gomera. |
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Flavoplaca oasis (A. Massal.) Arup, Frödén & Søchting (330) (Caloplaca oasis). On a concrete wall. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Flavoplaca oasis (A. Massal.) Arup, Frödén & Søchting (330) (Caloplaca oasis). On a concrete wall. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Flavoplaca oasis (A. Massal.) Arup, Frödén & Søchting (330) (Caloplaca oasis). On a concrete wall. Microscopic details. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Flavoplaca ora (Poelt & Nimis) Arup, Frödén & Søchting (543) Saxicol; on siliceous basaltic rocks. Thallus orange, areolate; apothecia up to 0.5 mm diam., rounded or irregular; disc flat; proper margin +- paler orange, persistent; epithecium orange-brown; hymenium colourless (45 µm); hypothecium colourless; asci 8-spored; ascospores polarilocular (1-septate), 10.5-12.6 x 6.0-8.1 μm; septum 4.2-6.0 μm; photobiont chlorococcoid. E; Canary Islands; La Gomera-MW; sw of Arure: hiking path to Taguluche. New to La Gomera. |
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Flavoplaca ora (Poelt & Nimis) Arup, Frödén & Søchting (543) Saxicol; on basaltic rocks. Microscopic details. E; Canary Islands; La Gomera-MW; sw of Arure: hiking path to Taguluche. New to La Gomera. |
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Fuscopannaria atlantica Jörg. & James (448) Terricolous; on undisturbed soil. Thallus grey; spredding irregularly; consisting of inconspicuous lobes (squamules), covered with isidioid granules; photobiont Nostoc. Thallus Pd-. E; Canary Islands; La Gomera-NW; nw of Vallehermoso; w Teselinde Massiv: ssw of Ermita St. Clara. |
Flechtenbilder (G)
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (20) (Fulgensia canariensis; Caloplaca canariensis). On strongly eroded volcanic rocks. Thallus crustose, consisting of yellow areoles/squamules, surface smooth; apothecia up to 1 mm diam.; disc flat to slightly convex with age; margin lecanorine; epith. orange-brown; hymenium colourless (88 µm); hypoth. colourless; asci 8-spored (53 µm); ascospores simple to 1-septate, pyriform (14.4-18.2 x 6.3-7.4 µm), conidia bacilliform; photobiont chlorococcoid. Thalllus and apothecia K+ red. E; Canary Islands; La Gomera-S ; nne of Santiago: hiking path between El Rumbazo and Targa. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (20) On strongly eroded volcanic rocks. E; Canary Islands; La Gomera-S ; nne of Santiago: hiking path between El Rumbazo and Targa. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (20) On strongly eroded volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-S ; nne of Santiago: hiking path between El Rumbazo and Targa. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (38) On strongly eroded volcanic rocks. E; Canary Islands; La Gomera-MSW; se of Chipude: at Fortaleza. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (20) (Fulgensia canariensis; Caloplaca canariensis). On strongly eroded volcanic rocks. Thallus crustose, consisting of yellow areoles/squamules, surface smooth; apothecia up to 1 mm diam.; disc flat to slightly convex with age; margin lecanorine; epith. orange-brown; hymenium colourless (88 µm); hypoth. colourless; asci 8-spored (53 µm); ascospores simple to 1-septate, pyriform (14.4-18.2 x 6.3-7.4 µm), conidia bacilliform; photobiont chlorococcoid. Thalllus and apothecia K+ red. E; Canary Islands; La Gomera-S ; nne of Santiago: hiking path between El Rumbazo and Targa. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (20) On strongly eroded volcanic rocks. E; Canary Islands; La Gomera-S ; nne of Santiago: hiking path between El Rumbazo and Targa. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (20) On strongly eroded volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-S ; nne of Santiago: hiking path between El Rumbazo and Targa. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (38) On strongly eroded volcanic rocks. E; Canary Islands; La Gomera-MSW; se of Chipude: at Fortaleza. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (38) E; Canary Islands; La Gomera-MSW; se of Chipude: at Fortaleza. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (38) On strongly eroded volcanic rocks. E; Canary Islands; La Gomera-MSW; se of Chipude: at Fortaleza. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (278) 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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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (278) 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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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (468) (syn. Fulgensia canariensis; Caloplaca canariensis). On strongly eroded volcanic rocks. Thallus crustose, consisting of yellow areoles/squamules, surface smooth; apothecia up to 1 mm diam.; disc flat to slightly convex with age; margin lecanorine; epith. orange-brown; hymenium colourless; hypothecium colourless; asci 8-spored; ascospores1-septate, pyriform (12.3-14.7 x 6.3-7.0 µm); septum 2.8-3.5 µm; photobiont chlorococcoid. Thalllus and apothecia K+ red. E; Canary Islands; La Gomera-MS; e of Imada: El Azadoe. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (468) (syn. Fulgensia canariensis; Caloplaca canariensis). E; Canary Islands; La Gomera-MS; e of Imada: El Azadoe. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (468) (syn. Fulgensia canariensis; Caloplaca canariensis). Microscopic details. E; Canary Islands; La Gomera-MS; e of Imada: El Azadoe. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (510) On strongly eroded volcanic rocks. Ascospores 14-18 x 7-7.7 µm. Apothecia and Thallus K+ red. E; Canary Islands; La Gomera-MSW; ese of Chipude: hiking path between Fortaleza and Igualero; se of the little brook. |
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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (510) On strongly eroded 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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Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup (510) On strongly eroded volcanic 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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Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup (250) (Caloplaca flavovirescens). On base-rich volcanic rocks. Thallus pale (greenish) yellow, dispersed; apothecia up to 1.5 mm diam.; apothecial disc orange (giving the lichen a bicoloured appearance), convex when older; margin paler, soon disappearing; epithecium orange-brown; hymenium colourless (-65 µm); ascospores ellipsoid, colourless, polarilocular (12.3-14.0 x 7.0-7.7 µm); septum thick (5.3-6.0 µm). Thallus & apothecia K+ red. E; Canary Islands; La Gomera-NW; s of Vallehermoso: Camino Forestal de la Meseta. |
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Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup (304) (Caloplaca flavovirescens). On volcanic rocks. Thallus consisting of (greenish)-yellow areoles, whitish pruinose; apothecia (-0.7 mm diam.); disc deep orange, flat, later convex; thalline margin yellow-grey; proper margin orange; epith./hypoth. colourless; hymenium colourless (-60 µm); asci 8-spored (-50 µm); ascospores colourless, polarilocular (12.6 - 14.0 x 6.3 - 7.7 µm); septum (3.5-5.3 µm). All parts K+ red. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup (304) On volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup (304) On volcanic rocks. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup (304) On volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup (329) On volcanic rocks. Thallus consisting of (greenish)-yellow areoles, whitish pruinose; apothecia (-1.2 mm diam.); disc deep orange, flat; thalline margin concolourous with thallus; proper margin orange; epith./hypoth. colourless; hymenium colourless (-53 µm); asci 8-spored; ascospores colourless, polarilocular (16.1 - 18.2 x 7.7 - 9.1 µm); septum (7.0-8.8 µm). All parts K+ red. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup (329) On volcanic rocks. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup (329) On volcanic rocks. Application with K. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup (329) On volcanic rocks. Microscopic details. E; Canary Islands; La Gomera-NW; se of Vallehermoso: El Tion. |
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Gyalolechia subbracteata (Nyl.) Søchting, Frödén & Arup (18) On calcareous soil. Thallus clearly lobate at the margins (but lobes shorter and more adnate than at G. fulgens); pruinose; usually without apothecia; the similar G. bracteata is not lobate and has usually many apothecia); with many scaly schizidia. Thallus K+ red. E; Canary Islands; La Gomera-NW: Village of Epina. New to La Gomera. |
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Gyalolechia subbracteata (Nyl.) Søchting, Frödén & Arup (33) On calcareous soil. Thallus clearly lobate at the margins (but lobes shorter and more adnate than at G. fulgens); pruinose; usually without apothecia; apothecial disc flat; margin lecanorine; with many scaly schizidia; (the similar G. bracteata is not lobate and has usually many apothecia). Thallus and apothecia K+ red. E; Canary Islands; La Gomera-NNW: hiking path between Playa de Vallehermoso and M. Alcala (Buenavista). |
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Gyalolechia subbracteata (Nyl.) Søchting, Frödén & Arup (33) On calcareous soil. E; Canary Islands; La Gomera-NNW: hiking path between Playa de Vallehermoso and M. Alcala (Buenavista). |
Flechtenbilder (H)
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Heterodermia leucomela * (L.) Poelt (293) On volcanic rocks, covered with soil. Thallus 5-10 cm, appearing as loosely attached mats; lobes elongate, up to 3 mm wide, ± dichotomously branched, with conspicuous black marginal cilia (resembles to Anaptychia ciliaris); upper surface green; lower side white, ± channelled, powdery to sorediate (no cortex existing); apothecia not seen. E; Canary Islands; La Gomera-MW; nnw of Arure: hiking path to Alojera. |
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Heterodermia obscurata (Nyl.) Trevis. (243) On a rottened tree stump. Thallus +- attached to the substrate; lobes ca. 1-3 mm wide; soralia globose, on ascending terminal lobes, soredia granular. Lower surface whitish, ecorticate, with rust-coloured or yellowish-orange pigments; with black, squarrose marginal rhizinae, up to 2 mm. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Heterodermia obscurata (Nyl.) Trevis. (243) On a rottened tree stump. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Heterodermia obscurata (Nyl.) Trevis. (243) On a rottened tree stump. E; La Gomera-MN; s of Las Rosas; s of Roque Blanco: near Mirador Dinero. |
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Heterodermia obscurata (Nyl.) Trevis. (401) Corticol, on Erica arborea. E; Canary Islands; La Gomera-M: Pajarito. |
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Heterodermia obscurata (Nyl.) Trevis. (401) Corticol, on Erica arborea. E; Canary Islands; La Gomera-M: Pajarito. |