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Taxon Pages
Tricharia nigriuncinata Yeshitela, Eb. Fischer, Killmann & Sérus.
Nomenclature
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Family: GomphillaceaeGenus: Tricharia
SUMMARY
Mycobank MB 517815
Thallus epiphyllous, continuous, smooth, lacking crystals, thin, greyish green, up to 5 mm wide, furnished with abundant sterile setae. Photobiont chlorococcoid with cells green and globose, 5–8 µm diam. Setae setiform, black, simple or usually furnished with 1–2(–6) horizontal or usually downwards bending hooks near their middle, slightly bending, up to 1.5 mm long and 0.04 mm thick at their base, black. Hyphophores not found. Apothecia usually absent, sometimes abundant, sessile, round, 0.1–0.2 mm diam., ca. 75 µm high; disc light orange to almost translucid, opaque, plane without pruina; margin thin, non or slightly prominent, smooth, pale brown, usually darker than the disc. Excipulum gelatinized, prosoplectenchymatous, 20–30 µm thick, light brown. Hypothecium ca. 10 µm thick, hyaline. Epithecium 5–8 µm high, pale brown. Hymenium hyaline, 40–50 µm thick. Paraphyses branched and anastomosing, 1 µm thick. Asci broadly clavate, 1(–2)-spored, 50–65 x 35–50 µm. Ascospores muriform with numerous cells, ellipsoid, 40–55 x 15–25 µm, hyaline.