Steinera sorediata P.James & Henssen
Details
Steinera sorediata P.James & Henssen, Bull. Brit. Mus. (Nat. Hist.), Bot. 10: 249 (1982)
Steinera sorediata P.James & Henssen
Biostatus
Nomenclature
P.James & Henssen
P.James & Henssen
1982
249
ICN
Steinera sorediata P.James & Henssen
species
Steinera sorediata
Classification
Descriptions
Steinera sorediata P.James & Henssen
Thallus mainly placodioid, spreading, to 6 cm diam., rather loosely attached, margins conspicuously lobate, muscicolous, terricolous or saxicolous, apices and margins often slightly raised, contiguous except at apices, ± flabellate, 1.5-2.5 mm wide, often imbricate, radially fissured, irregularly radiate and corrugate, sometimes with transverse, anastomosing cracks. Upper surface pale greyish-mauve, grey or pale stramineous, markedly scabrid-roughened, especially towards lobe apices, centrally subcrustose, ± continuous with deep, partially interconnecting cracks, sorediate. Soralia numerous, originating from breakdown of ridges, rounded, oval or elongate, becoming irregular and ± confluent and covering thallus, soredia pale blue-grey or lilac, coarsely granular, rarely with finger-like to coralloid isidia which become sorediate. Apothecia rare, scattered, 0.4-7 mm diam., at first innate, becoming emergent, with a slightly elevated thalline margin at maturity, disc bright red-brown to brown, smooth or roughened, concave or plane, margins rather thin, 0.5 mm wide, smooth or ± entirely granular-sorediate. Ascospores acicular-fusiform, with one or both ends tapering,(37-)45-57(-75) × (5-)5.5-7(-8) µm, 5-7-septate. Pycnidia not seen.
Taxonomic concepts
Steinera sorediata P.James & Henssen
Steinera sorediata P.James & Henssen
Steinera sorediata P.James & Henssen
Collections
Metadata
2ca5daae-332d-499c-aa31-077c4688a4ce
scientific name
Names_Plants
1 January 2000
13 September 2010