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Data Set Maintenance: Data set standard item. Data set author(s): Rambold G. Data set reviewer(s): Scholz P. (02-05-14); revised; to be published after submission.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: genus. Number of known taxa within this rank: 2 (A. Aptroot 99-09-27). Hubbsia. Roccellaceae Chevall. (1826); Arthoniales.

Type Information: Type: Hubbsia californica (Räsänen) W.A. Weber (syn. H. lumbricoides W.A. Weber).

Taxonomic Literature: Follmann G., Nova Hedwigia 31: 285-292 (1979) - sub Reinkella; Hasse
H.E., Bryologist 17: 45-46 (1914) - sub Reinkella; Tehler A., Can. J.
Bot. 68: 2458-2492 (1990); Tehler A., Lohtander K., Myllys L. & Sundin R. in: Tibell L. & Hedberg I. (eds), Symb. Bot. Upsal. 32: 255-265 (1997); Tehler A. in: Nash T.H. III et al. (eds) Lichen Flora of the Greater Sonoran Desert Region vol. 1, 219-220, Tempe (2002); Weber W.A., Svensk Bot. Tidskr. 59: 59-64 (1965); Weber W.A. in: Egan R., Bryologist 90: 77-173 (1987).

Biogeography: Checklist records: Sonoran Desert and United States and Canada (continental).

Lichen Photobionts: Primary photobiont present; trentepohlioid. Primary photobiont taxonomy: Trentepohlia; Trentepohliaceae; Trentepohliales, Chlorophyceae, Eukariota. Secondary photobiont absent.

Thallus: Sub-foliose or crustose, not subdivided parts, subfruticose, sub-lobed. Upper Surface: 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 holdfasts; special structures absent.

Reproduction Strategy: Only known as sterile, asexually reproducing form or with sexual (and possible asexual) stages. Ascocarps: Apothecioid, irregular or linear, forming all across the thallus surface, not emerging, becoming adnate or soon sessile, stromatic. Margin: Indistinct or distinct. Periphyses: Absent. Epithecium: Apical cells brown or brownish yellow. Interascal Hyphae: Present, distinctly branched, distinctly anastomosed. Hypothecium: Black or brown.

Ascospores: c. 8 per ascus, ellipsoid, fusiform, or oblong, 15-18 µm long, 4-5 µm wide; septa present; transversally septate, 3-4-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; formed all accross the thallus surface.

Secondary Metabolites: Not detected or present, of the following substance class(es): orcinol depsides.

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