Diplotomma alboatrum (Hoffm.) Flot.
Details
Diplotomma alboatrum (Hoffm.) Flot. (1849)
Diplotomma alboatrum (Hoffm.) Flot.
Biostatus
Nomenclature
Classification
Subordinates
Descriptions
Diplotomma alboatrum (Hoffm.) Flot.
Thallus rosette-forming in rounded patches 1-4(-10) cm, often coalescing and covering very large areas, white to grey-white, effuse or subfarinose or forming a rather thick areolate-cracked crust, occasionally rather wrinkled or verrucose, prothallus usually indistinct, marginal, greyish-arachnoid. Surface subarachnoid or granular-furfuraceous. Apothecia rounded, at first innate, soon superfical and adnate 0.2-1.5 mm diam., solitary to 2-4-confluent, disc black, plane to convex, often white-pruinose, margin thin, ± persistent, concolorous with disc, frequently surrounded by a superficial thalline margin, concolorous with thallus. Hypothecium red-brown. Hymenium brown and granular in upper part, colourless below. Epithecium black-brown. Paraphyses ± distinct, branched, septate, swollen, capitate, brownish at apices. Asci clavate. Ascospores brown, oblong-ellipsoid to somewhat fabiform, usually 3-septate (to 5-sepate or submuriform), 17-18.7 × 6-8(-8.3) µm.
Taxonomic concepts
Buellia alboatra (Hoffm.) Th.Fr.
Diplotomma alboatrum (Hoffm.) Flot.
Diplotomma alboatrum (Hoffm.) Flot.
Diplotomma alboatrum (Hoffm.) Flot.
Diplotomma alboatrum (Hoffm.) Flot.
Lichen alboater Hoffm.
Diplotomma alboatrum (Hoffm.) Flot.
Collections
Metadata
0b6cccf9-58c0-4e23-bed7-9aba44b5a2fb
scientific name
Names_Plants
1 January 2000
7 August 2009