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Cryptothelium A. Massal. (1860)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Aptroot A. (95-02-10); revised; to be published after submission.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: genus. Cryptothelium. Trypetheliaceae Zenker (1927); Pyrenulales.

Type Information: Type: Cryptothelium sepultum (Mont.) A. Massal.

Taxonomic Literature: Harris R.C., Acta Americana Suppl. 14: 55-80 (1986); Letrouit-Galinou M.-A., Rev. Bryol. Lichénol. 26: 207-264 (1957); Massalongo A.B., Atti Reale Ist. Veneto Sci., Ser. 3, 5: 335-§§§ (1860).

Biogeography: Checklist records: Guianas.

Ecology: Biotroph; lichenized; corticolous.

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

Thallus: Indistinct.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Perithecioid, orbicular, not emerging, stromatic. Wall: Carbonized only in parts, not fused. Margin: Indistinct; external filaments absent. Exciple: Black. Periphyses: Absent. Epithecium: Apical cells black. Interascal Hyphae: Present?, distinctly branched, distinctly anastomosed. Hypothecium: Black.

Asci: Tholus thickened, not amyloid; ocular chamber broad; dehiscence bitunicate.

Ascospores: c. 8 per ascus, ellipsoid, 70-255 µm long, 20-68 µm wide, obtuse; septa present; both transversally and longitudinally, 10-18-transversally septate, formed by the endospore wall layer; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present; pycnidial; immersed.

Conidia: Globose or bacilliform.

Secondary Metabolites: Not detected or present, of the following substance class(es): (anthra-)quinones or xanthones.

(report generated 04.Okt.2007)


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