Comprehensive Description
provided by Smithsonian Contributions to Botany
Pseudoparmelia rahengensis
Pseudoparmelia rahengensis (Vainio) Hale, 1974:191.
Parmelia rahengensis Vainio, 1921:39 [type collection: Nong Boa, near Raheng, Thailand, Hosseus 320 (TUR, lectotype)].
DESCRIPTION.—Thallus closely adnate on bark or rock, yellowish green, 3–6 cm broad; lobes sublinear, 0.5–2 mm wide; upper surface convex, continuous, densely isidiate, the isidia mostly simple, to 0.2 mm high; lower surface brown to tan, moderately rhizinate, the rhizines tan. Apothecia adnate, 1–3 mm in diameter, the amphithecium sparsely isidiate; spores 8, 3 × 5 μm.
CHEMISTRY.—Cortex K+ yellowish, medulla K−, C−, or C+ yellow, KC+ orange, P− or P+ faint; barbatic acid, obtusatic acid, 4–0-demethyl-barbatic acid, unidentified substance, rarely with an unidentified pigment.
DISTRIBUTION.—Thailand.
HABITAT.—On tree bark or rocks in open deciduous forests at 300–1350 m.
- bibliographic citation
- Hale, Mason E., Jr. 1976. "A Monograph of the Lichen Genus Pseudoparmelia Lynge (Parmeliaceae)." Smithsonian Contributions to Botany. 1-62. https://doi.org/10.5479/si.0081024X.31
