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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; 01-08-14); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 1. Thamnogalla. Phyllochoraceae Theiss. & H. Syd. (1915); Phyllachorales.

Taxonomic Literature: Taxonomic notes: order and family placement is still under discussion; ? Ostropales. Hafellner J. & Sancho L.G., Herzogia 8: 363-382 [371] (1990);
Hawksworth D.L., Notes Roy. Bot. Gard. Edinburgh 38: 176-180
(1980); Hoffmann N. & Hafellner J., Biblioth. Lichenol. 77: 1-190 [41-46] (2000); Ihlen P.G., Graphis Scripta 7: 17-24 (1995);
Triebel D., Rambold G. & Nash III T.H., Mycotaxon 42: 263-296
[291-292] (1991).

Biogeography: Checklist records: Great Britain, New Zealand, Sonoran Desert, Sweden and Norway, and United States and Canada (continental).

Ecology: Biotroph; lichenicolous; terricolous; substrate non-calciferous or calciferous.

Medulla: Iodine reaction in Lugol's solution negative; not different with or without KOH pre-treatment (euamyloid).

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Perithecioid (unclear whether perithecioid or apothecioid), orbicular, not emerging. Margin: External filaments absent. Exciple: White, olive, or pink (rosé). Periphyses: Absent. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White, olive, or pink (rosé).

Asci: Tholus thickened, not amyloid; dehiscence unitunicate; exoascus not amyloid, not hemiamyloid.

Ascospores: c. 8 per ascus, ellipsoid or oblong, 7-12 µm long, 2.5-5 µm wide, obtuse; septa absent; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

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