Calvitimela Hafellner (2001)
Data Set Maintenance: Data set standard item. Data set author(s): Scholz P. (02-05-18). 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: 3. Synonyms: Tephromela p. pt.; genus of unknown placement (incertae sedis)? @EXCL@ Lecanoraceae Körb. (1855); Lecanorineae; Lecanorales.
Type Information: Type: Calvitimela armeniaca (DC.) Hafellner.
Taxonomic Literature: Hafellner J. & Türk R., Stapfia 76: 1-167 [150-151, 164] (2001); Purvis O.W. in: Purvis O.W. et al. (eds), The lichen flora of Great Britain and Ireland: 1-710 [589-591] (1992) - sub Tephromela; Rambold G., Biblioth. Lichenol. 34: 1-346 [144-155] (1989) - sub Tephromela.
Biogeography: Checklist records: Australia @EXCL@ Austria @EXCL@ Germany @EXCL@ Great Britain @EXCL@ Italy @EXCL@ Sonoran Desert @EXCL@ Sweden and Norway @EXCL@ United States and Canada (continental).
Ecology: Biotroph; lichenized; substrate non-calciferous.
Lichen Photobionts: Primary photobiont present; chlorococcal. Secondary photobiont absent.
Thallus: Crustose, not subdivided parts, areolate (primarily areolate). Thallus Outline: Soon disappearing @EXCL@ persistent. Upper Surface: Brown (orange-brown to pale) or greenish white or grey-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, forming all across the thallus surface, soon sessile. Margin: Distinct or prominent. Exciple: Black or green. Epithecium: Apical cells black, green (blue-green to green-black), or brownish brown. Interascal Hyphae: Present. Hypothecium: White or brownish yellow.
Asci: Tholus thickened, amyloid, with non-amyloid narrow axial body and amyloid convergent flanks towards apex; dehiscence lecanoralean.
Ascospores: c. 8 per ascus, ellipsoid or oblong-obtuse, 8-14 µm long, 3.5-8 µm wide, obtuse; septa absent or present (rarely in old spores); transversally septate, 0-1-transversally septate; wall thin or thick, distinctly differentiated into primary and secondary wall, hyaline, not ornamented.
Conidiomata: Absent resp. not observed or present; pycnidial; immersed.
Conidia: Bacilliform.
Secondary Metabolites: Present, of the following substance class(es): ß-orcinol depsides, ß-orcinol depsidones, (higher) aliphatic acids, or dibenzofurans [and usnic acids].
(report generated 04.Okt.2007)
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