Pronectria Clem. (1931)

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; 00-06-12; 01-08-07; 01-08-10); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 13. Pronectria. Bionectriaceae Samuels & Rossman (1999); Hypocreales.

Type Information: Type: Pronectria lichenicola (Ces.) Clem. (= Pronectria robergei (Mont. & Desm.) Lowen).

Taxonomic Literature: Eriksson O.E., Svensk Bot. Tidskr. 58: 233-236 (1964) - sub
Nectriella; Etayo J., Nova Hedwigia 67(3-4): 499-509 (1998); Etayo
J., Bull. Soc. Linn. Provençe 51: 153-162 (2000); Etayo J.,
Anales J. Bot. Madrid 58(2): 219-222 (2001); Etayo J. & Breuss
O., Cryptog. Bryol. Lichénol. 17: 213-230 [220-222] (1996);
Etayo E. & Diederich P., Bull. Soc. Naturalistes Luxemb. 97: 93-
118 [110-111] (1996); Hafellner J., Herzogia 10: 1-28 [21] (1994);
Hawksworth D.L., Notes Roy. Bot. Gard. Edinburgh 36: 181-197 (1978) -
sub Nectriella; Hawksworth D.L., Nova Hedwigia 35: 755-763 (1983) -
sub Nectriella; Kocourcová J., Acta Mus. Nat. Pragae, Ser. B.,
Hist. Nat. 55(3-4): 59-169 [113-114] (2000); Kondratyuk S.Y.,
Muelleria 9: 93-104 [93-95] (1996); Lowen R., Mem. New York Bot.
Gard. 49: 243-252 (1989) - sub Nectriella anisospora + key; Lowen R.,
Mycotaxon 39: 461-463 (1990); Lowen R., Mycotaxon 53: 81-95 (1995);
Lowen R. & Diederich P., Mycologia 82: 788-791 (1990); Lowen R.
& Hawksworth D.L., Lichenologist 18: 321-328 (1986) - sub
Nectriella; Martínez Moreno M.I., Ruzia 15: 1-200 [173-174]
(1999); Rossman A.Y., Samuels G.J., Rogerson C.T. & Lowen R.,
Genera of the Hypocreales: 1-7 (1993) - [unpublished manuscript
presented at the First International Workshop on Ascomycete
Systematics, Paris]; Zhurbenko M.P. & Alstrup V., Acta Univ.
Upsal. Symb. Bot. Upsal. 34(1): 477-499 (2004).

Biogeography: Checklist records: Austria, Great Britain, and United States and Canada (continental).

Ecology: Biotroph; algicolous, lichenicolous, or fungicolous; terricolous, 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: Perithecioid, orbicular, not emerging, becoming adnate. Margin: External filaments absent or present. Exciple: Red, pink (rosé), violet, yellow, brownish yellow, brown, or orange. Periphyses: Absent or present. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Absent. Hypothecium: Red, pink (rosé), yellow, brownish yellow, or orange.

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

Ascospores: 1–2 to c. 8 per ascus, globose, ellipsoid, broadly ellipsoid, ovoid, oblong, cylindrical, fusiform, filiform, curved, or allantoid, 6.5-63 µm long, 2.5-11 µm wide, obtuse or aciculate; septa present; transversally septate, 1-7-transversally septate, formed by the proper spore wall; wall thin, not thickened at the septum, laterally constricted where the septum meets the spore wall, hyaline or pale brown, in Lugol's Solution negative, wall not ornamented or ornamented.

Conidiomata: Absent resp. not observed or present; hyphomycetous.

Conidiogeneous Cells: Apical. Conidia: Bacilliform.

Secondary Metabolites: Not detected.

(report generated 04.Okt.2007)