martin_grube's Identifications

on Tilia

on base of Acer; with numerous rhizines

on Acer; lower surface pale; margins pruinose

on Alnus

on branches of Sambucus nigra; 8 spores per ascus; septum > 1/4 of the length of the spore

on branches of Picea abies; base blackened; medulla white; both cortex and medulla rather thick; soralia punctiform

on Picea abies

on base of Acer pseudoplatanus; with only few schizidia along fractures

on Fagus sylvatica; lower surface pale brown; margins not pruinose; wet not greenish

on Acer pseudoplatanus

on siliceous rock

on branches of Sambucus nigra; 8 spores per ascus; spores colourless, mainly 1-septate, 12-15 x 4-5

on branches of Sambucus nigra; 8 spores per ascus; septum > 1/4 of the length of the spore

on branches of Sambucus nigra; apothecia c. 0.4 mm; 16 spores per ascus; spores colourless, simple, 10-12 x 5

on branches of Acer pseudoplatanus; apothecia c. 0.2 mm; spores colourless, 1-septate, 8-10 x 3; apices of paraphyses with a well-defined, dark brown apical cap

on branches of Acer pseudoplatanus; epihymenium brown, K+ purple; spores colourless, 3-septate, 17-19 x 5-6

thalline exciple P-, K+ yellow; epihymenium brown, in K lnot dissolving; spores colourless. simple, 15 x 9

on wooden fence; apothecia c. 0.2 mm; spores colourless, 1-septate, 9 x 3; paraphyses with a well-defined dark brown apical cap

on wooden fence

on wooden fence; thalline exciple P+ yellowish, K+ yellow; epihymenium brownish, dissolving in K

on wooden fence; thalline exciple P-, K-; epihymenium brown; spores colourless, simple, 8-9 x 4-5

on Phaeophyscia orbicularis

on Acer pseudoplatanus; with lichenicolous fungus Tremella phaeophysciae

on Acer pseudoplatanus

on Acer pseudoplatanus; apothecial disc C+ intense yellow

on Acer pseudoplatanus; thalline exciple P+ yellowish, K+ yellow; epihymenium brownish, dissolving in K