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Echinoplaca Fée (1824)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Lücking R. (95-08-01); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 25 (A. Aptroot 99-09-27). Echinoplaca. Gomphillaceae W. Watson ex Hafellner (1984); Ostropales.

Type Information: Type: Echinoplaca epiphylla Fée.

Taxonomic Literature: Aptroot A., Diederich P., Sérusiaux E. & Sipman H.J.M., Biblioth. Lichenol. 64: 1-220 [57-60] (1997); Aptroot A. & Sipman H.J.M., Lichenologist 25: 121-135 (1993); Santesson R., Symb. Bot. Upsal. 12: 1-590 [362-376] (1952); Sérusiaux E., Mycotaxon 35: 237-242 (1989); Vezda A. & Poelt J., Folia Geobot. Phytotax. 22: 179-198 (1987).

Biogeography: Checklist records: United States and Canada (continental), Guianas, and New Guinea.

Ecology: Biotroph; lichenized; bryophytic, corticolous, or epiphyllous.

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

Thallus: Crustose, not subdivided parts, granular. Thallus Outline: Persistent. Upper Surface: Green, grey, or white; special structures absent or present:; not pseudocyphellate; eciliate; without hairs or hairy; not isidate; not sorediate; not cephalodiate; not lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by the whole lower surface; special structures present:; not pseudocyphellate; not cyphellate; not rhizinate; without thalloconidia thalloconidia; not cavernulate; not tomentose.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, orbicular, forming all across the thallus surface, not emerging, becoming adnate to soon sessile. Margin: Indistinct. Exciple: White. Periphyses: Absent. Epithecium: Apical cells brown, hyaline, or brownish yellow. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed. Hypothecium: White or brownish yellow.

Ascospores: 1–2 to c. 8 per ascus, ellipsoid, broadly ellipsoid, oblong, cylindrical, fusiform, oblong-obtuse, or ovoid, 4-100 µm long, 2-18 µm wide, obtuse; septa present; transversally septate or both transversally and longitudinally, 1-27-transversally septate; wall thin, not thickened at the septum, hyaline, in Lugol's Solution negative, wall not ornamented.

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

(report generated 04.Okt.2007)


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