Comprehensive Description
provided by Smithsonian Contributions to Botany
Pseudoparmelia cinerascens
Pseudoparmelia cinerascens (Lynge) Hale, 1974:189.
Parmelia cinerascens Lynge, 1914:104 [type collection: Paraguari, Paraguay, Malme 1498 (S, lectotype)].
DESCRIPTION.—Thallus adnate, fragile, ashy mineral gray, 4–5 cm broad; lobes short, becoming imbricate, 1–3 mm wide; upper surface plane, irregularly cracked with age, densely isidiate, isidia cylindrical, simple or branched; lower surface black, rhizines moderate to sparse. Apothecia abundant, adnate; spores 8, 6 × 12 μm.
CHEMISTRY.—Cortex K+ yellow, medulla K+ yellow turning red, C−, KC−, P+ orange; atranorin and salazinic acid.
DISTRIBUTION.—Brazil and Paraguay.
HABITAT.—On trees in open forest.
- 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
