Candelariella Müll. Arg. (1894)

Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. 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: 45. Candelariella. Synonyms: Eklundia Dodge (1968); Candelariaceae Hakul. (1954); Lecanorineae; Lecanorales.

Type Information: Type: Candelariella vitellina (Ach.) Müll. Arg.

Taxonomic Literature: Castello M. & Nimis P.L., Acta Bot. Fenn. 150: 5-10 (1994);
Clauzade G. & Roux C., Bull. Soc. Bot. Centre-Ouest, N.S. 7: 1-
893 [266-268] (1985); Dodge C.W., Nova Hedwigia 15: 285-332 (1968) -
sub Eklundia; Galloway D.J., Flora of New Zealand. Lichens: 1-662 [72-
74] (1985); Hakulinen R., Ann. Bot. Soc. Zool.-Bot. Fenn. "Vanamo"
27(3): I-VI, 1-127 (1954); James P.W. & Gilbert O.L. 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 [159-162]
(1992); Poelt J., Phyton (Horn) 16: 189-210 (1974); Poelt J. &
Reddi B.V., Khumbu Himal, Ergebn. Forsch.-Unternehmen Nepal Himalaya
6(1): 1-16 (1969); Poelt J. & Vezda A., Biblioth. Lichenol. 9: 1-
258 [33] (1977); Rambold G. & Triebel D., Biblioth. Lichenol. 48:
1-201 [101-102] (1992).

Biogeography: Checklist records: Austria, Bolivia, Germany, Great Britain, Italy, New Zealand, Sonoran Desert, Sweden and Norway, Thailand, 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: Crustose, placodioid, granular, or rimose. Upper Surface: Yellow; special structures absent or present:; not pseudocyphellate; eciliate; without hairs; not isidate or isidiate; 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, soon sessile. Margin: Prominent; external filaments absent. Exciple: Yellow or white. Periphyses: Absent. Epithecium: Apical cells yellow or brownish yellow. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White.

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

Ascospores: c. 8 to 16-32 per ascus, ellipsoid or oblong-obtuse, 9-18 µm long, 3-6.5 µm wide, obtuse; septa absent or present; transversally septate, 1-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; pycnidial; immersed or stipitate, formed all accross the thallus surface.

Conidiogeneous Cells: Apical. Conidia: Globose.

Secondary Metabolites: Present, of the following substance class(es): pulvinic acid derivatives.

(report generated 04.Okt.2007)