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 Thallus: continuous, poorly developed, effuse, mostly endophloeodal; surface: white; anatomy: without a differentiated medulla, I-, K/I-; Ascomata: black, scattered, sessile with +constricted base, +round or slightly irregular, 0.2-0.5 mm in diam., with shallow margins scarcely raised above the level of the disc or immarginate; disc: black, plane or slightly convex with uneven surface, epruinose; exciple: dark red-brown, open below the subhymenium, up to 40 µm wide at the top, up to 75 µm wide at the base, I-, K/I-; pseudoepithecium: dark brown, reticulate; hymenium: hyaline, 115-150(-180) µm tall, I+ pale red or pale blue turning somewhat red, K/I+ blue; paraphysoids: with apical cells not or slightly thickened, branched and anastomosing; subhymenium: hyaline to pale brown, 120-150(200) µm thick, I+ pale red, K/I+ pale blue; asci: cylindrical, 90-135 x 10-12 µm, apparently 8-spored; ascospores: hyaline, Dryina-type, spirally arranged in asci; cells of spores: 2-4(-5) x 2-3 µm, cubical to +round; Pycnidia: not found; Secondary metabolites: none detected.; Substrate and ecology: on dead Cupressus macrocarpa; World and Sonoran distribution: known only from the type locality on the central California coast [Monterey Co.], which is north of the Sonoran region.; Notes: Technically Bactrospora spiralis falls north of the Sonoran region, but it may well be found here in the future. 


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© Lichen Unlimited: Arizona State University, Tempe.

Source: Lichen Flora of the Greater Sonoran Desert Region

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