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Data Set Maintenance: Data set compiled. Data set author(s): Helms G. (01-01-22). Data set not to be published after submission.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Currently accepted name Buellia griseovirens. Buellia. Physciaceae Zahlbr. (1898); Lecanorineae; Lecanorales.

Biogeography: Cosmopolitan (in temperate zones). Continent: Europe and Northern America. Checklist records: Austria, Germany, Great Britain, Italy, New Zealand, Sweden and Norway, and United States and Canada (continental).

Ecology: Biotroph; lichenized; lignicolous, corticolous, or rarely saxicolous; growing sun-exposed.

Thallus: Not subdivided parts, rimose; separate thallus parts thin or thick. Upper Surface: Grey or grey-green, smooth (to wrinkled); eciliate; without hairs; not isidate; sorediate; soralia isolated, not confluent with other soralia or fusing. Lower Surface: Absent, firmly attached attached; attached by the whole lower surface.

Reproduction Strategy: With sexual (and possible asexual) stages (very rare). Ascocarps: Sparse, .4-1 mm in diam.. Disk: Plane or weakly convex.

Ascospores: (13)-15-28 µm long, 7-13 µm wide; septa present; both transversally and longitudinally.

Secondary Metabolites: Present; atranorin, norstictic acid, or stictic acid (traces of other).

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