Mycomicrothelia Keissl.
Details
Mycomicrothelia Keissl. (1936)
Mycomicrothelia Keissl.
Biostatus
Indigenous, non-endemic
Wild
New Zealand
NZ Botanical Region
genus of c. 33 species; two from New Zealand
Nomenclature
Keissl.
Keissl.
1936
ICN
genus
Mycomicrothelia
Classification
Subordinates
Descriptions
Mycomicrothelia Keissl.
Thallus crustose to lacking, when present whitish or cream, hypophloeodal, corticolous. Photobiont when present green, -like. Ascomata perithecioid, immersed, only the ostiole becoming erumpent in a few species, subglobose to adpressed, clypeate, the clypeus consisting of hyphae intermixed with bark cells and forming an involucrellum, peridium (exciple) entire or dimidiate, formed of interwoven hyphae but lacking bark cells, brown or dark brown. Paraphyses cellular, pseudo-paraphyses branched and anastomosing, often sparse, conspicuously septate, centrum not reacting with I. Asci arising from base or angles of ascomatal cavity, broadly clavate to elongate-clavate, bitunicate, non-amyloid, fissitunicate, 8-multispored. Ascospores biseriate, ellipsoid, the apices usually smoothly rounded, 1(-3)-septate, cells almost equal in size or the lower one smaller, somewhat constricted at septum in most species, brown prior to release from asci, walls ornamented, verruculose, often with a gelatinous sheath. Pycnidia unknown in most species, common in others, structure of conidiomata recalling that of ascomata. Conidia ellipsoid to subcylindrical, brown or colourless, simple to 1-septate. Chemistry:—.
Taxonomic concepts
Metadata
37df8dc9-0034-48ff-96f7-c3181323c367
scientific name
Names_Plants
1 January 2000
4 November 2010