Lecidella Körb. (1855)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Lumbsch H. T. (98-03-17); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 50 (A. Aptroot 99-09-27). Lecidella. Lecanoraceae Körb. (1855); Lecanorineae; Lecanorales.

Type Information: Type: Lecidella viridans (Flot.) Körb.

Taxonomic Literature: Clauzade G. & Roux C., Bull. Soc. Bot. Centre-Ouest, N.S. 7: 1-
893 [485-489] (1985); Galloway D.J., Flora of New Zealand. Lichens: 1-
662 [242-243] (1985); Hertel H., Decheniana 127: 37-78 (1975); Hertel
H., Khumbu Himal, Ergebn. Forsch.-Unternehmen Nepal Himalaya 6(3):
145-378 [317-338] (1977); Knoph, J.-G., Biblioth. Lichenol. 36: 1-183
(1990); Knoph J.-G. & Leuckert C., Nova Hedwigia 59: 455-508
(1994); Knoph J.-G., Leuckert C. & Hertel H., Cryptog. Bot. 5: 45-
54 (1995); Knoph J.-G. & Mies B. in: Knoph J.-G., Schrüfer
K. & Sipman H.J.M., Biblioth. Lichenol. 57: 297-305 (1995);
Leuckert C., Knoph J.-G., Ziegler H.G. & Hertel H., Herzogia 8:
265-272 (1989); Poelt J. & Vezda A., Biblioth. Lichenol. 16: 1-
390 [189-202] (1981); Purvis O.W. & James P.W. in: Purvis O.W.,
Coppins B.J., Hawksworth D.L., James P.W. & Moore D.M. (eds), The
lichen flora of Great Britain and Ireland: 1-710 [336-340] (1992);
Rambold G., Biblioth. Lichenol. 34: 1-346 (1989); Rambold G. &
Triebel D., Biblioth. Lichenol. 48: 1-201 [112] (1992).

Biogeography: Checklist records: Austria, Bolivia, Germany, Great Britain, Guianas, Italy, New Guinea, New Zealand, Sonoran Desert, Sweden and Norway, United States and Canada (continental), and Republic of South Africa.

Ecology: Biotroph; lichenized or lichenicolous; terricolous, bryophytic, lignicolous, or corticolous; substrate non-calciferous or calciferous.

Lichen Photobionts: Primary photobiont present; chlorococcal. Primary photobiont taxonomy: Trebouxia (A. Beck 22-05-97); Trebouxiaceae; Trebouxiales, Trebouxiophyceae, Eukariota. Secondary photobiont absent.

Thallus: Indistinct or crustose, leprose, granular, or rimose. Upper Surface: Grey, green, yellow, white, olive, or brownish yellow; special structures absent or present:; not pseudocyphellate; eciliate; without hairs; not isidate; not sorediate or sorediate; not cephalodiate; not 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, orbicular, forming all across the thallus surface, becoming adnate to soon sessile. Margin: Distinct to prominent; external filaments absent. Exciple: Black, grey, green, yellow, brown, white, olive, brownish yellow, or orange. Periphyses: Absent. Epithecium: Apical cells black, green, brown, or olive. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: Yellow, brown, white, brownish yellow, or orange.

Asci: Tholus thickened, amyloid, with non-amyloid narrow axial body and amyloid convergent flanks towards apex; dehiscence lecanoralean.

Ascospores: c. 8 per ascus, broadly ellipsoid or ellipsoid, 7-17-(20) µm long, 6-9 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; pycnidial; immersed, formed all accross the thallus surface.

Conidiogeneous Cells: Apical. Conidia: Filiform.

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

(report generated 04.Okt.2007)