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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Kasalicky T. (98-07-30); revised; to be published after submission.

Nomenclature: Current taxonomic status: basionymous or accepted. Taxonomic rank: genus. Number of known taxa within this rank: 1. Xanthomendoza. Teloschistaceae Zahlbr. (1898); Teloschistineae; Lecanorales.

Type Information: Type: Xanthoria mendozae Räs. = Xanthomendoza mendozae (Räs.) Kondratyuk & Kärnefelt.

Taxonomic Literature: Kondratyuk S. & Kärnefelt I., Biblioth. Lichenol. 68: 19-44 (1997).

Ecology: Biotroph; lichenized; terricolous or corticolous; substrate non-calciferous.

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

Thallus: Foliose, umbilicate. Thallus Outline: Soon disappearing. Upper Surface: Orange, red, or yellow; special structures present:; not pseudocyphellate; eciliate; without hairs; not isidate; sorediate; not cephalodiate; not lobulate; without granules granules, without thalloconidia thalloconidia. Lower Surface: Attached by holdfasts; special structures present:; not pseudocyphellate; not cyphellate; 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, soon sessile. Margin: Prominent; external filaments absent. Exciple: White. Epithecium: Apical cells orange or yellow. Interascal Hyphae: Present, scarcely branched, not or scarcely anastomosed. Hypothecium: White.

Asci: Tholus thickened, amyloid, entirely amyloid throughout; dehiscence lecanoralean.

Ascospores: c. 8 per ascus, broadly ellipsoid, (11.5)-13-16 µm long, (5.5)-6.5-7.5 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 or stipitate.

Secondary Metabolites: Present, of the following substance class(es): (anthra-)quinones.

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