Comprehensive Description
provided by Smithsonian Contributions to Botany
Pseudoparmelia nairobiensis
Pseudoparmelia nairobiensis (Steiner and Zahlbruckner) Hale, 1974:190.
Parmelia nairobiensis (“neirobiensis”) Steiner and Zahlbruckner, 1926:517 [type collection: Nairobi, Kenya, Schroder 287 (W, lectotype)].
Parmelia gracilescens var. angolensis Vainio in Welwitsch, 1901:401 [type collection: Serra da Xella, Huíla, Angola, Welwitsch 30 pro parte (TUR, Vainio herbarium number 3059, lectotype)].
Parmelia angolensis (Vainio) Dodge, 1959:103.
Parmelia ganguellensis Dodge, 1959:109 [type collection: Ganguelas and Ambuelas, Benguela, Angola, Gossweiler (BM, lectotype)].
Parmelia hansfordii Dodge, 1959:127 [type collection: Kampala, Uganda, Hansford 1455 (BM, lectotype)].
DESCRIPTION.-—Thallus loosely adnate to appressed on bark, rather coriaceous, greenish to buff mineral gray, 5–10 cm broad; lobes sublinear to subirregular, usually apically subrotund, 2–5 mm wide, often becoming marginally lobulate with age; upper surface plane, shiny, usually conspicuously pycnidiate, reticulately rimose with age; lower surface black except for a narrow marginal brown zone, sparsely to moderately rhizinate. Apothecia common, adnate, 2–5 mm in diameter; spores 8, 6–8 × 8–13 μm.
CHEMISTRY.—Cortex K+ yellow, medulla K−, C−, KC+ faint violet or KC−, P−; atranorin and divaricatic acid with associated unknowns.
DISTRIBUTION.—Kenya, Uganda, Angola, Zaire, Rhodesia, and Tanzania.
HABITAT.—On trees and rocks in open or secondary forest at 1000–1700 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
