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Data Set Maintenance: Data set standard item. Data set author(s): Triebel D. Data set reviewer(s): Triebel D. (98-01-01); revised; to be published after submission.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: genus. Trichophyma. Genus of unknown placement (incertae sedis); of unknown placement (incertae sedis).

Lichen Photobionts: Primary photobiont absent. Primary photobiont taxonomy: Anabaena. Secondary photobiont absent.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, lingulate, or linear, not emerging. Margin: Distinct to prominent; external filaments absent. Exciple: Brown or brownish yellow. Periphyses: Absent. Epithecium: Apical cells hyaline. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed. Hypothecium: White.

Asci: Tholus thickened, not amyloid; ocular chamber indistinct; dehiscence bitunicate; exoascus not amyloid, not hemiamyloid.

Ascospores: c. 8 per ascus, ovoid, 14-28 µm long, 6-11 µm wide, obtuse; septa present; both transversally and longitudinally, 3-7-transversally septate, formed by the proper spore wall; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

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