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Usnea fragilis Stirt.
Family :
Parmeliaceae
Stirton, Scott. Natur. 6: 293. 1882
ID :
BU/BRL/2022/038
Thallus :
Corticolous or saxicolous, erect to pendulous, to 17 cm long, greenish grey to brown
Lobes :
Branching sub dichotomous to sympodial; branches non-articulate and non-inflated; main branch to 1.5 (-2) mm in diam.; lateral branch lets sparse to dense
Upper Side:
Surface of branches annularly cracked and longitudinally fissured in basal part, apical region tuberculate
Isidia :
Pseudocyphellate-sorediate to pseudo-isidiate
Lower Side :
Medulla :
Not known
Apothecia :
Ascospores :
Outer part of medulla red pigmented; central axis solid, colourless, I - Medulla K-, P-. Barbatic acid present
Chemistry :
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