Psora Hoffm.
Details
Psora Hoffm., Deutschl. Fl. (Hoffm.) 161 (1796)
Psora Hoffm.
Biostatus
Indigenous, non-endemic
Wild
New Zealand
Political Region
Widespread genus of c. 30 species.
Nomenclature
Hoffm.
Hoffm.
1796
161
conserved
ICN
genus
Psora
Classification
Subordinates
Descriptions
Psora Hoffm.
Thallus squamulose or minutely lobate, squamules 1.5-5 mm diam., foliose, heteromerous, dorsiventral, loosely or closely attached, corticate on both upper and lower surfaces, saxicolous or terricolous. Upper cortex pseudoparenchymatous, cells swollen, with or without isidia, with or without soredia or pruina. Photobiont green, . Lower surface corticate, with short rhizines. Apothecia biatorine, 1-2 mm diam., brownish or black. Excipulum swollen. Hymenium 80-100 µm tall. Paraphyses 3 µm thick, apices thickened (5 µm) coherent, conglutinate, not branched or anastomosing. Asci clavate, 8-spored, thin-walled with clearly developed apical tholus, tholus with amyloid ring structure. Ascospores colourless, simple, thin-walled, not halonate, globose to ellipsoid.
Taxonomic concepts
Metadata
f0333707-97c4-4ca2-ad87-8957e5b95bbc
scientific name
Names_Plants
1 January 2000
5 April 2017