Flechtenbilder (U)

Umbilicaria-crustulosa Umbilicaria crustulosa (Ach.) Frey
On siliceous rocks.
Apothecia omphalodisc (with a central point of sterile tissue).
Central Europe (France): Vosges.
Umbilicaria-crustulosa-US Umbilicaria crustulosa (Ach.) Frey
Lower surface.
Umbilicaria-cylindrica Umbilicaria cylindica (L.) Del. ex Duby
On siliceous rocks.
With branched cilia on the margins of lobes; Apothecia common, with gyrose discs.
Austria: Alps.
Umbilicaria-decussata Umbilicaria decussata (Vill) Frey
On siliceous rocks.
Upper surface grey, areolate; with ridges (mainly at the center).
Austria: Alps.
Umbilicaria-deusta-4909 Umbilicaria deusta (L.) Baumg.
On siliceous rocks.
Upper surface brown-black; with numerous cylindrical to flattened isidia (the only european species with isidia).
Sweden: Dalarna.
Austria: Alps.
Umbilicaria-grisea-4994 Umbilicaria grisea Hoffm.
On siliceous rocks.
Upper surface grey, rimose-areolate, pruinose; margins sorediate. Lower surface distinctly warted-areolate; rhizines not seen.
Central Europe.
Umbilicaria-grisea-US-4994 Umbilicaria grisea Hoffm.
Umbilicaria-hirsuta-4910 Umbilicaria hirsuta (Sw. ex Westr.) Hoffm.
On siliceous rocks.
Thallus grey; lobe margins sorediate, often curved downwards; lower side bright brown; with numerous rhizines. Thallus K-, C+ red.
Sweden: Värmland.
Umbilicaria-hirsuta-8007 Umbilicaria hirsuta (Sw. ex Westr.) Hoffm.
Central Europe; Germany; Baden-Württemberg: Black Forest.
Umbilicaria-hyperborea Umbilicaria hyperborea(Ach.) Hoffm.
On siliceous rocks.
Thallus single-lobed; upper surface folded or wrinkled or warted; apothecia common, black, gyrose.
Sweden: Dalarna.
Austria: Alps.
Umbilicaria-nylanderi Umbilicaria nylanderiana (Zahlbr.) Magn.
On siliceous rocks.
Upper surface corsely wrinkled and folded.
Austria: Alps.
Umbilicaria-nylanderi-US Umbilicaria nylanderiana (Zahlbr.) Magn.
Umbilicaria-polyphylla-5816 Umbilicaria polyphylla (L.) Baumg.
On siliceous rocks (usually nutrient-enriched).
Thallus appearing multi-lobed; upper surface smooth, dark brown to black, ± shining; lower surface without rhizines.
Central Europe; Germany; Hesse: Rhön Mountains.
Umbilicaria-polyphylla Umbilicaria polyphylla (L.) Baumg.
Sweden: Dalarna.
Umbilicaria-polyrhiza-4997 Umbilicaria polyrhiza (L.) Frey
On siliceous rocks (usually nutrient-enriched).
Upper surface with erect marginal rhizines (sometimes also on surface cracks).
Sweden: Värmland.
Umbilicaria-proboscidea-4996 Umbilicaria proboscidea (L.) Schrader
On siliceous rocks.
Thallus single-lobed; upper surface with elevated ridges towards the center, ridges often pruinose. Apothecia black, gyrose.
Norge: Scandes.
Umbilicaria-proboscidea-4996-US Umbilicaria proboscidea (L.) Schrader
Lower surface smooth, usually without rhizines.
Umbilicaria-spadochroa Umbilicaria spadochroa (Erh. ex Hoffm.) DC.
On siliceous rocks.
Thallus single-lobed, apothecia black, frequent (usually near the margin), with a rim and a sterile tissue at the center; lower surface with numerous branched rhizines.
Norge: Scandes.
Umbilicaria-torrefacta-4995 Umbilicaria torrefacta (Lightf.) Schrader
On siliceous rocks (usually nutrient-enriched).
Thallus single-lobed; upper surface warted-areolate; apothecia frequent, black, gyrose.
Central Europe: Hesse (Taunus).
Umbilicaria-torrefacta-4995-US Umbilicaria torrefacta (Lightf.) Schrader
Lower side.
Umbilicaria-vellea Umbilicaria vellea (L.) Hoffm.
On siliceous rocks.
Thallus single-lobed; upper surface areolate.
Austria: Alps.
Unknown 2991a Unknown species
On Salix spec., between mosses.
Thallus adpressed to the substratum; lower side pale yellowish-brownish; densely tometose/rhizinate; apothecial disc plane when young, later convex; margin biatorine, later disappearing; photobiont blue-green.
Portugal: Madeira.
(Precipitation up to 3000 mm/year).
Unknown 2991b Unknown
On Salix spec., between mosses.
Portugal: Madeira.
Unknown apothecia 2991 Unknown
On Salix spec., between mosses.
Apothecial details.
Portugal: Madeira.
Unknown underside 2991 Unknown
On Salix spec., between mosses.
Lower surface.
Portugal: Madeira.
Unknown microscopic detais 2991 Unknown
On Salix spec., between mosses.
Microscopic details: Ascospores colourless, simple, 15.1-17.5 x 8.8-10.2 µm, 8 per ascus; asci 40 µm, epithecium pale brown (14 µm); hymenium colourloess (70 µm); hypothecium pale brownish.
Portugal: Madeira.
Blattflechte 4312a Unknown foliose species
On soil, between mosses.
Thallus consisting of ascending lobes (up to  3 mm wide); lobe margins with fine, white hairs; lower surfaqce with white rhizinae; photobiont: Nostoc.
Portugal: Madeira.
(1750 m above sea-level).
Blattflechte 4312c Unknown foliose species
On soil, between mosses.
Portugal: Madeira.
Blattflechte 4312b Unknown foliose species
On soil, between mosses.
Hairs.
Portugal: Madeira.
Blattflechte US 4312 Unknown foliose species
On soil, between mosses.
Lower surface.
Portugal: Madeira.
Blattflechte 4312 Mikroskop Unknown foliose species
On soil, between mosses.
Microscopic details.
Portugal: Madeira.
Usnea-articulata Usnea articulata (L.) Hoffm.
On twigs of different tree species (deciduous trees and conifers).
Thallus shrubby, pendent; branches up to 3 mm diam., older parts forming sausage-like segments (difference to other Usneas), with comma-like pseudocyphellae; apothecia not seen. Medulla K-, C-, KC-, Pd+ red. (Young specimen without the characteristical articulations may be confused with U. flammea but the medulla of this species reacts K+ orange).
Portugal: Madeira.
Spain, Canary Islands: Tenerife, La Gomera.
Nepal: Dhaulagiri-region.
Usnea-dasypoga-5959 Usnea dasypoga (Ach.) Nyl.
On deciduous trees.
Thallus pendulous, up to 30 cm long (the specimen on the image is young); main branches are covered with many short, right-angeled branches (up to 1 cm); main branches covered with warts (see small image), developping to clustered isidia on the top of the warts; the holdfast is black (see image). Medulla K+ red, Pd+ orange.
Central Europe; Sweden.
Central Europe: Germany.
Usnea-florida-01 Usnea florida (L.) Web. ex Wigg.
Mainly on branches of trees.
Thallus ± erect, up to 5 cm; branches black at the base, with spins (up to 1 cm) and small warts; without isidia and soredi; apothecia common, margins with spinules (distinctive to this species). Medulla K+ yellow, P+ orange-red.
Austria: Alps. (1400 m above sea level)
France: Jura. (1200 m)
Usnea-florida Usnea florida (L.) Web. ex Wigg.
Usnea-glabrescens-CE4076 Usnea glabrescens (Nyl. ex Vain.) Vain. ex Räsänen
On deciduous trees.
Thallus up to 15 cm tall, erect near the basis, pendulous to the apices; main branches densely papillate; soredia ulcer-like; no isidia; fibrils ± absent. Medulla K+ red or K-; Pd+ yellow to orange.
Central Europe: Germany.
(Coll/ident: Eichler/Cezanne)
Usnea-hirta-01 Usnea hirta (L.) Weber ex Wigg.
Corticolous, mainly on conifers; also on fences and plancs. One of the most common Usnea species in Central Europe.
Thallus bushy, up to 5 cm; branches not blackened on the base, ± terete or irregular- angular in cross section, often ridged; no soredia but with long and thin isidia; lateral branches rare, constricted at the base. Medulla mostly without spot reactions (rarely K+ red and P+ orange).
(U. filipendula is also common, but has a blackened base, the main branches are covered with numerous branchlets and the medulla is K+ red, P+ orange).
Central Europe. (also in lower parts).
Alps.
Usnea-rubicunda-6442 Usnea rubicunda Stirton
Corticolous; on deciduous trees (Laurisilva).
Fibrils (up to 1 cm long) numerous to sparse; main branches covered with tubercle-like isidia (see lower image) which can erode and become sorediate. Medulla K+ yellow-red to red, C-, Pd + orange. (Pale-coloured specimen may resemble to U. ceratina but this species has no Pd+ reaction).
Portugal: Madeira.
Spain; Canary Islands: La Gomera.
Usnea-rubicunda-6221-01 Usnea rubicunda Stirton
Usnea-subfloridana-7228-01 Usnea subfloridana Stirton
On twigs of Prunus spinosa.
Thallus large (up to 15 cm tall), bushy, erect to ± pendulous, blackish near the base; soralia irregularly rounded, soredia granular (isidiate).
Medulla K+ yellow to orange; Pd+ yellow to orange-red.
Central Europe; Germany: Hesse.
(Coll/ident: Eichler/Cezanne)
Usnea-subfloridana-CE5552 Usnea subfloridana Stirton
Usnea-substerilis-7228 Usnea substerilis Motyka
On twigs of Prunus spinosa.
Thallus bushy to subpendulous; branches covered almost entirely by irregular soralia.
Central Europe; Germany: Hesse.
(Coll/ident: Eichler/Cezanne)