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Data Set Maintenance: Data set compiled (by C. Kainz, 03-04-10) and standard item.

Nomenclature: Current taxonomic status: accepted. Taxonomic rank: species. Endococcus. Synonyms: Discothecium stigma (Körb.) Zopf, Mycoporum stigma (Körb.) Jatta; Verrucariaceae Zenker (1827); Verrucariales.

Type Information: Basionym: Tichothecium stigma Körb., Parerga Lich.: 468 (1865).

Taxonomic Literature: Taxonomic notes: Sonoran specimen: U.S.A. Arizona. Apache Co.: Apache N. F., Mt. Baldy Wilderness, between Phelp's cabin and base of cliffs, ca. 2800 m, 33°55'30''N, 109°30'30''W, mixed conifer forest including large trees of Pseudotsuga menziesii, on boulders of volcanic conglomerate at the edge of the forest, on Acarospora subgen. Phaeothallia sp. (thallus), Hafellner 36669 (GZU); Ibid., 33°55'N, 109°31'W, ca. 3000 m, on Acarospora subgen. Phaeothallia spec., Ryan & N. 27011 & 27104 (ASU). Triebel D., Biblioth. Lichenol. 35: 1-278[226] (1989); Hafellner J. et al., Mycotaxon 84: 293-329 (2002).

Biogeography: Continent: Europe and Northern America. Checklist records: Sonoran Desert and United States and Canada (continental).

Ascocarps: Perithecioid, not emerging, soon sessile, 100-200-(250) mm in diam.. Margin: Black. Periphyses: Present. Interascal Hyphae: Absent.

Ascospores: c. 8 per ascus, oval ("ovoid to broadly ovoid (L:W ≤ 2.4), with one end or both ends strongly attenuated"), 12-16-(20) µm long, (4)-6-(8) µm wide; septa present; transversally septate; wall thick, distinctly differentiated into primary and secondary wall, dark brown or middle brown (or greyish brown), not ornamented.

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