Comprehensive Description
provided by Smithsonian Contributions to Botany
Pseudoparmelia venezolana
DESCRIPTION.—Thallus adnatus, saxicola, cinereoalbus, 3–7 cm latus, lobis sublinearibus, congestis, 0.6–1.0 mm latis; superne planus, nitidus, dense isidiatus, isidiis cylindricis, simplicibus vel ramosis, 0.2–0.4 mm altis; cortex superior 15–18 μm crassus, epicorticatus, epicortice distincte perforato, stratum gonidiale ca 10 μm crassum, medulla alba, 100 μm crassa, cortex inferior paraplectenchymatus, 810 μm crassus; subtus pallide brunneolo-albus, sparse rhizinosus, rhizinis simplicibus, pallidis. Apothecia ignota.
CHEMISTRY.—Cortex K+ yellow, medulla K−, C−, KC− or KC+ rose, P+ red; atranorin and protocetraric acid.
HOLOTYPE.—Venezuela: Táchira, Pico Banderas, Páramo de Tamá, elevation 3200 m, M. E. Hale 45526a, 27 March 1975 (US).
- 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
