Comprehensive Description
provided by Smithsonian Contributions to Botany
Pseudoparmelia amazonica
Pseudoparmelia amazonica (Nylander) Hale, 1974:189.
Parmelia amazonica Nylander, 1885:611 [type collection: Santarem, Brazil, Spruce 111 (H, Nylander herbarium number 35111, lectotype; BM, G, NY, W, PC, isolectotypes)].
DESCRIPTION.—Thallus closely adnate on bark, 5–10 cm broad, light mineral gray and turning buff in the herbarium; lobes subirregular, apically rotund, 2–6 mm wide, contiguous; upper surface plane, continuous, moderately isidiate, the isidia rarely branched, to 2 mm high; lower surface black, densely rhizinate except for a narrow naked or papillate zone along the margins. Apothecia rare, 1–3 mm in diameter; spores 8, 8–10 × 13–16 μm.
CHEMISTRY.—Cortex K+ yellow, medulla K−, C−, KC+ rose, P+ red; atranorin and protocetraric acid.
DISTRIBUTION.—United States (Florida), Central America, West Indies, Colombia, Venezuela, Brazil, Guinea, and Taiwan.
HABITAT.—On trees (conifers, palm trees, deciduous trees), Opuntia, and on rocks in open forests at 100–1500 m elevation.
- 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
