Hypotrachyna flavovirens (Kurok.) Hale

Hypotrachyna flavovirens

Parmelia flavovirens Kurokawa in Hale and Kurokawa, 1964:176. [Type collection: 50 km SE Natales, Magallanes, Chile, Santesson 5681 (S, holotype; US, isotype).]

Thallus adnate, sea-foam green, 3–6 cm in diameter; lobes sublinear, short and sometimes imbricate, 1–2.5 mm wide; upper surface plane, shiny, becoming rugulose with age, lobulate toward the center, sorediate, the soralia mainly subterminal, capitate; lower surface densely rhizinate, the rhizines densely dichotomously branched. Apothecia adnate, 2–4 mm in diameter, the amphithecium rugose; spores 7μ–10μ × 11μ–15μ.

CHEMISTRY.—Cortex K−, medulla K−, C−, P+ orange-red (usnic acid and protocetraric acid).

DISTRIBUTION.—Southern Chile.

HABITAT.—On trees (Nothofagus) and on rocks at low elevation.