Abrothallus De Not. (1845)

Data Set Maintenance: Data set standard item. Data set author(s): Triebel D. Data set reviewer(s): Scholz P. (07-07-24) and Triebel D. (98-01-01; 01-08-10; 02-06-22); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 15-16. Abrothallus. Genus of unknown placement (incertae sedis); of unknown placement (incertae sedis).

Type Information: Type: Abrothallus bertianus De Not.

Taxonomic Literature: Alstrup V. & Hawksworth D.L., Meddel. Grønland, Biosci. 31: 1-90 [15, 74] (1990); Bellemère A., Malherbe M.C., Chacun H. & Hafellner J., Cryptog. Mycol. 7: 47-85 (1986); Clauzade G., Diederich P. & Roux C., Bull. Soc. Linn. Provençe, N.S. 1: 1-142 [23-24, 106] (1989); Cole M. S.
& Hawksworth D. L., Mycotaxon 77: 305-338 [309-313] (2001);
Diederich P., Trav. Sci. Mus. Hist. Nat. Luxembourg 14: 1-268 [27-
31] (1989); Diederich P., Mycotaxon 37: 297-330 [298-302] (1990);
Etayo J., Bull. Soc. Linn. Provençe 51:153-162 (2001); Etayo J., Biblioth. Lichenol. 84:1-154 [15-22] (2002); Etayo J. & Osorio H.S., Com. Bot. Mus. Nac. Hist. Nat. Antropol. 6(129): 1-19 [3-5] (2004); Hafellner J., Herzogia 10: 1-28 [3-6] (1994); Hawksworth D.L., Bull. Brit. Mus. (Nat. Hist.), Bot. 9(1): 1-98 [67-72] (1981) - for anamorphs; Hawksworth D.L., Lichenologist 15: 1-44 [19-20, 29-30] (1983); Hawksworth D.L., Notes Roy. Bot. Gard. Edinburgh 46: 391-403 (1990); Hawksworth D.L. & Dyko B.J., Lichenologist 11: 51-61 (1979) - for anamorphs; Hawksworth D.L. & Minter D.W., Trans. Brit. Mycol. Soc. 74(3): 567-577 [567-568] (1980); Hertel H., Willdenowia 6: 225-272 [228-230] (1971); Kocourková J., Acta Mus. Nat. Pragae, Ser. B., Hist. Nat. 55 (3-4): 59-169 [62-65, 133-134] (2000); Nordin J., Svensk Bot. Tidskr. 58: 225-231 (1964); Santesson R., Svensk Bot. Tidskr. 54: 499-522 [513-514] (1960); Triebel D., Rambold G. & Nash III T.H., Mycotaxon 42: 263-296 [264, 265, 292] (1991); Wedin M., Lichenologist 26: 301-310 (1994).

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

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

Lichen Photobionts: Primary photobiont absent. Secondary photobiont absent.

Thallus: Indistinct.

Medulla: Iodine reaction in Lugol's solution negative or in Lugol's solution positive; 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: Apothecioid, orbicular, not emerging, becoming adnate to stipitate. Margin: Indistinct; external filaments absent. Exciple: Black or brown. Periphyses: Absent. Epithecium: Apical cells red, green, olive, yellow, or brown. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed. Hypothecium: White, red, green, olive, brownish yellow, or brown.

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

Ascospores: c. 4 to c. 8 per ascus, ellipsoid or broadly ellipsoid, 7-28 µm long, 3-10 µm wide, obtuse or aciculate; septa present; transversally septate, 1-3-transversally septate; wall thin, not thickened at the septum, laterally constricted where the septum meets the spore wall, pale brown to middle brown or dark brown, in Lugol's Solution negative, wall not ornamented or ornamented.

Conidiomata: Absent resp. not observed or present; pycnidial; immersed to sessile.

Conidiogeneous Cells: Apical. Conidia: Globose (to obpyriform) or reniform; not branched; aseptate; up to 0-septate; cell wall hyaline.

Secondary Metabolites: Not detected.

(report generated 04.Okt.2007)