Physalospora Niessl (1876)

Data Set Maintenance: Data set standard item. Data set author(s): Triebel D. Data set reviewer(s): Triebel D. (98-01-01; 01-8-16); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 30. Physalospora. Hyponectriaceae Petr. (1923); of unknown placement (incertae sedis).

Type Information: Type: Physalospora alpestris Niessl.

Taxonomic Literature: Taxonomic notes: Lichenicolous species are now placed in Cercidospora, Myxophora, Obryzum, Roselliniella, Sagediopsis and Zwackhiomyces (see Hoffmann & Hafellner (2000). Arx J.A. von & Müller E., Beitr. Kryptogamenfl. Schweiz 11(1): 1-434 [162-175] (1954); Barr M.E., Mycologia 62: 377-394 (1970); Clauzade G., Diederich P. & Roux C., Bull. Soc. Linn. Provençe, N.S. 1: 1-142 [71-72] (1989) - sub P. aspiciliae, P. collematis, P. friesii, and P. lecanorae; Hafellner J., Herzogia 9: 749-768 [760] (1993) - sub P. aspiciliae; Hoffmann N. & Hafellner J., Biblioth. Lichenol. 77: 1-190 [39-40] (2000); Keissler K. von, Ark. Bot. 18(16): 1-24 [1-2] (1923); Remler P., Biblioth.
Mycol. 68: 1-321 [65-69] (1979); Scheuer C., Biblioth. Mycol. 123:
1-274 [156-158, 226-227] (1988); Vainio E., Acta Soc. Fauna Fl.
Fenn. 49(2): 1-274 [216] (1921) - sub Sporophysa.

Biogeography: Checklist records: Australia, Austria, Germany, Great Britain, Italy, and Sweden and Norway.

Ecology: Saprobic or biotroph (All lichenicolous taxa might well belong to another genus); lichenicolous (All lichenicolous taxa might well belong to another genus); terricolous or epiphyllous; 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: Perithecioid, orbicular, not emerging, becoming adnate. Wall: Not carbonized, not fused. Margin: External filaments absent or present. Exciple: Black, yellow, brown, red, white, olive, brownish yellow, orange, or violet. Periphyses: Present. Hymenium: Iodine reaction: Lugol’s negative or Lugol’s positive, not hemiamyloid. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: Black, yellow, brown, red, white, olive, brownish yellow, or orange.

Asci: Tholus not thickened or thickened, not amyloid or amyloid, with amyloid tube; dehiscence unitunicate.

Ascospores: c. 8 per ascus, ellipsoid, oblong-obtuse, ovoid, or fusiform, 10-50 µm long, 3-23 µm wide, obtuse or aciculate; septa absent; wall thin or thick, distinctly differentiated into primary and secondary wall, not thickened at the septum, hyaline or pale 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)