Eremastrella S. Vogel (1955)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set not revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 1. Eremastrella. Psoraceae Zahlbr. (1898); Cladoniineae; Lecanorales.

Type Information: Type: Eremastrella crystallifera (Taylor) Gotth. Schneid.

Taxonomic Literature: Schneider G., Biblioth. Lichenol. 13: 1-291 (1979).

Biogeography: Checklist records: Republic of South Africa.

Ecology: Biotroph; lichenized; terricolous.

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

Thallus: Crustose, squamulose or areolate (primarily areolate). Upper Surface: Brown or brownish yellow; special structures absent. Lower Surface: Attached by the whole lower surface; special structures absent.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular or irregular, forming all across the thallus surface, soon sessile. Margin: Indistinct; external filaments absent. Exciple: White, olive, or brownish yellow. Periphyses: Absent. Epithecium: Apical cells brown or olive. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White or brownish yellow.

Asci: Tholus thickened, amyloid, with amyloid tube; dehiscence lecanoralean.

Ascospores: c. 8 per ascus, ellipsoid, 14-16 µm long, 6.5-8 µm wide, obtuse; septa absent; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present.

Secondary Metabolites: Not detected.

(report generated 04.Okt.2007)