Dactylospora Körb. (1855)

Data Set Maintenance: Data set standard item. Data set author(s): Triebel D. Data set reviewer(s): Scholz P. (06-06-12, 06-08-07) and Triebel D. (98-01-01; 02-06-22; 03-02-01); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 37. Dactylospora. Dactylosporaceae Bellem. & Hafellner (1982); of unknown placement (incertae sedis).

Type Information: Type: Dactylospora floerkei Körb. (= Dactylospora parasitica (Flörke) Zopf).

Taxonomic Literature: Alstrup V. & Olech M., Polish Polar Res. 14: 33-42 (1993);
Alstrup V., Christensen S.N., Hansen E.S. & Svane S.,
Fradskaparrit 40: 61-121 [89-90] (1994); Döbbeler P. &
Triebel D., Bot. Jahrb. Syst. 107(1-4): 503-519 (1985); Etayo J.,
Candollea 46: 391-393 (1991); Etayo J., Biblioth. Lichenol. 84:1-154
[41] (2002); Hafellner J., Beih. Nova Hedwigia 62: 1-248 [90-152]
(1979); Hafellner J., Triebel D., Ryan B.D. & Nash T.H.,
Mycotaxon 84: 293-329 (2002); Hawksworth D.L., Lichenologist 35(3):
191-232 (2003); Ihlen P.G., Lichenologist 30: 27-57 [43-45] (1998);
Ihlen P.G., Holien H. & Tønsberg T., Bryologist 107(3):
357-362 (2004); Kohlmeyer J. & Volkmann-Kohlmeyer B., Mycotaxon
67: 247-250 (1998); Kondratyuk S.Y. & Galloway D.J. in: Knoph J.-
G., Schrüfer K. & Sipman H.J.M., Biblioth. Lichenol. 57: 327-
245 [336-337] (1995); Olech M. & Alstrup V., Polish Polar Res.
17(3-4): 165-168 (1996); Sarrion F.J., Hafellner J. & Burgaz
A.R., Lichenologist 34(5): 361-368 (2002); Tholl M.-T., Baral H.O.,
Schultheis B. & Marson G., Bull. Soc. Nat. Luxemb. 99: 45-61 [46-
47](1998); Triebel D., Biblioth. Lichenol. 35: 1-278 [195-219]
(1989); Wai Ting Au D., Lee Ping Vrijmoed L. & Gareth Jones E.B.,
Mycoscience 37: 129-135 (1996).

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

Ecology: Saprobic or biotroph; algicolous, lichenicolous, or fungicolous; bryophytic, lignicolous, or corticolous; substrate non-calciferous or calciferous.

Lichen Photobionts: Primary photobiont absent. Secondary photobiont absent.

Thallus: Indistinct.

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: Apothecioid, orbicular, becoming adnate to stipitate. Margin: Prominent; external filaments absent. Exciple: Black, brownish yellow, or brown. Periphyses: Absent. Epithecium: Apical cells hyaline, brownish yellow, or brown. Hymenium: Iodine reaction: Lugol’s negative, hemiamyloid. Interascal Hyphae: Present, scarcely branched to distinctly branched, not or scarcely anastomosed to distinctly anastomosed. Hypothecium: White, brownish yellow, or brown.

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

Ascospores: c. 4 to c. 8 or 16-32 to more than 32 per ascus, ellipsoid, broadly ellipsoid, or oblong, 4-37 µm long, 2-14 µm wide, obtuse or aciculate; septa absent or present; transversally septate or both transversally and longitudinally, 1-7-transversally septate, formed by the proper spore wall; wall thin or thick, distinctly differentiated into primary and secondary wall, not thickened at the septum, laterally constricted where the septum meets the spore wall, hyaline or 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.

Secondary Metabolites: Not detected.

(report generated 04.Okt.2007)