Ocellularia G. Mey. (1825)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Sipman H. (98-01-15); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 200. Ocellularia. Thelotremataceae (Nyl.) Stizenb. (1862); Ostropales.

Type Information: Type: Ocellularia obturata (Ach.) Spreng.

Taxonomic Literature: Galloway D.J., Flora of New Zealand lichens: i-lxxiii, 1-662 [320-
321], Wellington (1985); Hale M., Smithsonian Contr. Bot. 16: 1-46
(1974); Hale M., Bull. Br. Mus. Nat. Hist. Bot. 8: 227-332 (1981);
Nagarkar M.B. & Hale M.E., Mycotaxon 35: 437-447 (1989).

Biogeography: Checklist records: Guianas, New Zealand, Thailand, United States and Canada (continental), and Republic of South Africa.

Ecology: Biotroph; lichenized; corticolous.

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

Thallus: Indistinct or crustose, not subdivided parts, granular or rimose. Upper Surface: Grey, white, olive, or brownish yellow; special structures absent or present:; not pseudocyphellate; eciliate; without hairs; not isidate or isidiate; not sorediate; not cephalodiate; not lobulate or lobulate; without granules granules, without thalloconidia thalloconidia. 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 or perithecioid, orbicular, forming all across the thallus surface, not emerging, becoming adnate to soon sessile. Margin: Distinct to prominent; external filaments absent. Exciple: Black or brown. Periphyses: Absent. Epithecium: Apical cells hyaline. Hymenium: Oil inspersed, iodine reaction: Lugol’s negative, not hemiamyloid. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed.

Asci: Tholus thickened, not amyloid; exoascus not amyloid, not hemiamyloid.

Ascospores: 1–2 to c. 8 per ascus, oblong-obtuse or ovoid, 8-360 µm long, 4-35 µm wide, obtuse; septa present; transversally septate or both transversally and longitudinally, formed by the endospore wall layer; wall thin, not thickened at the septum, dark brown, middle brown, grey, or hyaline, in Lugol's Solution negative, wall not ornamented.

Conidiomata: Absent resp. not observed or present.

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

(report generated 04.Okt.2007)