Bryoscyphus Spooner (1984)

Data Set Maintenance: Data set standard item. Data set author(s): Triebel D.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: up to 6. Bryoscyphus. Synonyms: Helotium marchantiae Berk. : Fr. var. conocephali Boyd; Leotiaceae Corda (1842); Leotiales.

Type Information: Type: Bryoscyphus conocephali (Boyd) Spooner.

Taxonomic Literature: Alstrup V.& Cole M.S., Bryologist 101(2): 221-229 (1998); Spooner
B.M., Kew Bull. 38: 548-576 [559-565] (1984); Verkley G.J.M., Aa van
der H.A. & Cock de G.W., Persoonia 16(3): 383-387 (1997).

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

Ecology: Biotroph; lichenicolous; bryophytic or terricolous.

Lichen Photobionts: Primary photobiont absent.

Thallus: Indistinct.

Reproduction Strategy: With sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, substipitate to stipitate. Wall: Not carbonized. Margin: Distinct; external filaments absent or present. Exciple: Brown, white, olive, or brownish yellow. Hymenium: Iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed.

Asci: Tholus thickened, not amyloid or amyloid, with amyloid tube; ocular chamber indistinct; dehiscence unitunicate; exoascus not amyloid, not hemiamyloid.

Ascospores: c. 8 per ascus, ellipsoid, ovoid, clavate, or fusiform, 11-24 µm long, 2-10 µm wide, obtuse or aciculate; septa absent or present; transversally septate, 0-1-(3)-transversally septate, formed by the proper spore wall; wall thin, not thickened at the septum, not constricted where the septum meets the spore wall, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed.

Secondary Metabolites: Not detected.

(report generated 04.Okt.2007)