Bactrospora A. Massal. (1852)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Egea J.M. & Torrente P. (99-11-10); revised; to be published after submission; 99-11-9.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: genus. Number of known taxa within this rank: 22. Bactrospora. Synonyms: Scolecatis Clements (1907; Lecanactis sect. Bacidiastis Vainio (1875); Melampilidium Stirton ex Müll. Arg. (1875); Opegraphaceae Stizenb. (1862); Arthoniales.

Type Information: Type: Bactrospora dryina (Ach.) A. Massal.

Taxonomic Literature: Egea J.M. & Torrente P., Lichenologist 25: 211-255 (1993); Egea J.M. & Torrente P., Mycotaxon 53: 57-61 (1995); Egea J. M., Sérusiaux E., Torrente P. & Wessels D., Mycotaxon 61: 455-466; Galloway D.J., Flora of New Zealand lichens: i-lxxiii, 1-662 [269-270], Wellington (1985) - sub Melampylidium; James P.W. & Purvis O.W. in: Purvis O.W. et al. (eds), The Lichen Flora of Great Britain and Ireland, London (1992); Nordin A., Lichenologist 28: 287-290 (1996); Sherwood M.A., Mycotaxon 6: 215-260 (1977); Paz-Bermúdez G. & López de Silanes M.E., Lichenologist 30(3): 291-292 (1998); Torrente P. & Egea J.M., Biblioth. Lichenol. 32: 1-282 (1989).

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

Ecology: Biotroph; lichenized; lignicolous or corticolous; substrate non-calciferous.

Lichen Photobionts: Primary photobiont present; trentepohlioid. Secondary photobiont absent.

Thallus: Indistinct or crustose, not subdivided parts, granular or rimose. Thallus Outline: Soon disappearing or persistent. Upper Surface: Grey, white, olive, or brownish yellow; special structures absent; not pseudocyphellate; eciliate; without hairs or hairy; not isidate; not sorediate; not cephalodiate; not lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by the whole lower surface; special structures absent or present:; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

Medulla: Iodine reaction in Lugol's solution negative or in Lugol's solution positive; not different with or without KOH pre-treatment (euamyloid) or reacting violet-red without and distinctly blue with KOH pre-treatment (hemiamyloid).

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular or irregular, forming all across the thallus surface, becoming adnate to soon sessile. Margin: Distinct to prominent; external filaments absent. Exciple: Black, brown, or brownish yellow. Epithecium: Apical cells brown or brownish yellow. Hymenium: Iodine reaction: Lugol’s negative or Lugol’s positive, not hemiamyloid or hemiamyloid. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed. Hypothecium: Black, brown, white, or brownish yellow.

Asci: Tholus thickened, amyloid, with amyloid cap; ocular chamber indistinct; dehiscence bitunicate.

Ascospores: c. 8 per ascus, cylindrical or filiform, 20-175 µm long, 1.5-13-(14) µm wide, obtuse; septa present; transversally septate or both transversally and longitudinally, (1)-3-45-transversally septate; wall thin, not thickened at the septum, not constricted where the septum meets the spore wall or laterally constricted where the septum meets the spore wall, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present; pycnidial; immersed to adnate, formed all accross the thallus surface.

Conidia: Bacilliform, curved, or filiform; not branched; aseptate; cell wall hyaline.

Secondary Metabolites: Not detected.

(report generated 04.Okt.2007)