Usnea sphacelata R.Br.
Details
Usnea sphacelata R.Br. (1823)
Usnea sphacelata R.Br.
Biostatus
Nomenclature
R.Br.
R.Br.
1823
49
ICN
Usnea sphacelata R.Br.
species
Usnea sphacelata
Classification
Synonyms
Descriptions
Thallus fruticose, erect, tufted, rather small and delicate, 1-3.5 cm tall. Branches 1-1.5 mm wide at base, tapering towards apices, weakly dichotomously branching. Surface pale yellow at base and for 1-1.5 cm, blackened or banded black and yellow above, annulate-cracked and sometimes ± jointed, smooth, waxy, glossy, not or very rarely faveolate, rarely minutely papillate, sorediate. Soralia round to ± irregular, 0.01-0.5 mm wide, ± completely eroding, papillate at first, becoming convex-pulvinate-eroded, soredia fine, granular, not easily dispersed, blackened. Medulla very lax. Chondroid axis narrow 073-063 diam. of branch. Apothecia not seen. Chemistry: Cortex K-; medulla K-, C-, KC-, Pd-. Usnic acid.
Taxonomic concepts
Neuropogon sphacelatus (R.Br.) D.J.Galloway
Usnea sphacelata R.Br.
Neuropogon sulphureus (J.Koenig) Hellb.
Neuropogon sulphureus (J.König) Hellb.
Usnea sphacelata R.Br.
Usnea sphacelata R.Br.
Usnea sphacelata R.Br.
Usnea sphacelata R.Br.
Collections
Metadata
742e560e-890a-42e9-900a-fe699cbd2af4
scientific name
Names_Plants
13 March 2002
6 January 2016