Usnea contexta Motyka
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Details
Usnea contexta Motyka, Usnea 2(1), 436–437 (1937)
Usnea contexta Motyka
Biostatus
Nomenclature
Motyka
Motyka
1937
436–437
ICN
Usnea contexta Motyka
species
Usnea contexta
Classification
Descriptions
Usnea contexta Motyka
Thallus decumbent, straggling, rarely fruticose or subpendulous, 10-15 cm long, soft, flaccid when moist, yellowish-green or yellowish-white, smooth and shining, matt, repeatedly dichotomously branching, terricolous. Branches divergent, irregularly curved, 1 mm wide, abruptly attenuate at apices, irregularly jointed, primary branches ± inflated or articulate at branch points, terete, slightly faveolate-impressed in basal parts, smooth, glabrous, occasionally indistinctly papillate, secondary branches rather few, without tubercles, isidia, soredia or spinules. Apothecia not seen. Chemistry: Fumarprotocetraric, protocetraric and usnic acids.
Taxonomic concepts
Collections
Metadata
111dfaca-1d29-4e2f-bacf-d5b69df6ce54
scientific name
Names_Plants
1 January 2000
24 March 2023