Hypotrachyna dactylifera (Vain.) Hale

Hypotrachyna dactylifera

Parmelia dactylifera Vainio, 1890:57. [Type collection: Lafayette, Minas Gerais, Brazil, Vainio 363 (TUR, lectotype; BM, FH, M, P, UPS, isolectotypes).]

Parmelia tilacea var. leucina Müller Argau, 1880:267. [Type collection: Petrópolis, Brazil, Deventer (G, lectotype).]

Thallus closely adnate, tannish mineral gray, 3–8 cm broad; lobes sublinear, often crowded, 1–4 mm wide; upper surface plane, continuous, with age becoming rugulose, becoming densely isidiate, the isidia very large, about 1 mm high, fragile and usually breaking open and pustulate apically without formation of soredia; lower surface moderately rhizinate, the rhizines densely dichotomously branched. Apothecia rare, adnate to substipitate, 1–4 mm in diameter; spores 5μ–7μ × 9μ–18μ.

CHEMISTRY.—Cortex K+ yellow, medulla K−, C−, KC+ rose, P− (atranorin, colensoinic acid, norcolensoinic acid, 4-O-demethylphysodic acid, physodic acid, lividic acid, and associated unknowns, and, if pigmented in the lower medulla, rhodophyscin).

DISTRIBUTION.—Mexico, Costa Rica, Panama, Venezuela, Chile, Brazil, Uruguay, and Africa.

HABITAT.—On trees (hardwoods and conifers) and rarely on rocks, in open secondary forest or cloud forest at 1000–2800 m elevation.

Hypotrachyna dactylifera je porost, co go nojprzōd ôpisoł Vain., a terŏźnõ nazwã doł mu Hale. Hypotrachyna dactylifera nŏleży do zorty Hypotrachyna i familije Parmeliaceae. Żŏdne podgatōnki niy sōm wymianowane we Catalogue of Life.