Pseudocyphellaria episticta (Nyl.) Vain.
Details
Pseudocyphellaria episticta (Nyl.) Vain., Philipp. J. Sci., C 8: 117 (1913)
Pseudocyphellaria episticta (Nyl.) Vain.
Biostatus
Nomenclature
(Nyl.) Vain.
Nyl.
Vain.
1913
117
ICN
species
Pseudocyphellaria episticta
Classification
Descriptions
Pseudocyphellaria episticta (Nyl.) Vain.
Thallus orbicular to spreading, loosely to closely attached, rather ragged, 8-12(-20) cm diam. Lobes ± linear-elongate, or sometimes rounded, margins deeply indented, ragged, isidiate-lobulate, often ascending, rather fragile. Upper surface bright lettuce-green when wet, pale greyish-green to pale fawn when dry, smooth, undulate to ± wrinkled, matt or shining, with numerous, white, minute, punctiform pseudocyphellae, isidiate, without soredia or maculae. Isidia delicate, flattened, coralloid-branched, rarely ± terete, finger-like, marginal at first then laminal. Medulla white. Photobiont green. Lower surface pale buff to whitish and glabrous at apices, ± uniformly brown-tomentose in older parts. Pseudocyphellae white, scattered, sparse to numerous, sunk in tomentum, to 1 mm diam. Apothecia rare, scattered, subpedicellate, disc dark redbrown, matt, epruinose, concave to plane, to 2 mm diam., margins pale, corrugate-scabrid at first, crenate-coronate with age, exciple massive, pale flesh-coloured, corrugate-scabrid. Ascospores colourless to pale yellowish, oblong-fusiform, 1-3-septate, 30 × 7 µm. Chemistry: Two chemodemes present. (i): 7β-acetoxyhopan-22-ol, hopane-15α, 22-diol, and two unidentified compounds. (ii): 15α-acetoxy-22-hydroxyhopan-24-oic acid, 15α-22-dihydroxy-24-hopanoic acid. (Dr A.L. Wilkins pers. comm.).
Taxonomic concepts
Lobaria episticta (Nyl.) Trevis.
Pseudocyphellaria episticta (Nyl.) Vain.
Pseudocyphellaria episticta (Nyl.) Vain.
Pseudocyphellaria episticta (Nyl.) Vain.
Pseudocyphellaria episticta (Nyl.) Vain.
Pseudocyphellaria episticta (Nyl.) Vain.
Sticta episticta Nyl.
Pseudocyphellaria episticta (Nyl.) Vain.
Collections
Metadata
34a8a125-9c2f-42f4-9879-1746717e38dc
scientific name
Names_Plants
1 January 2000
10 December 2021