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Dolichousnea longissima (Ach.)
Family :
Parmeliaceae
Articus, Taxon 53(4): 932 (2004)
Previously: Usnea longissima Ach.
Acharius. Lich. Univ.: 626. 1810
ID :
BU/BRL/2022/006
Thallus :
Corticolous, pendulous, filamentose branches to 60 cm long, several meters long in nature, pale yellow, greyish green to light brownish; 0.5-1 mm in diam.
Lobes :
Lateral branchlets dense, perpendicular, 2-5 cm long
Upper Side:
Surface of filamentose branches usually decorticated, rarely pulverulent to powdery, cortex of lateral branchlets persistent, cracked near base
Isidia :
Soredia or isidia present
Lower Side :
Medulla :
Rare, to 5 mm in diam., margin ciliate
Apothecia :
8 x 6 µm
Ascospores :
Central axis solid, colorless, I+ blue
Chemistry :
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