Comprehensive Description
provided by Smithsonian Contributions to Botany
Pseudoparmelia ischnoides
Pseudoparmelia ischnoides (Kurokawa) Hale, 1974:190.
Parmelia ischnoides Kurokawa in Hale and Kurokawa, 1964: 155 [type collection: Window Stream, Kirstenbosch, Wynberg, Cape Province, Union of South Africa, Almborn 1698 (LD, holotype; TNS, US, isotypes)].
DESCRIPTION.—Thallus closely adnate on rock, fragile, whitish ashy gray, 4–10 cm in diameter; lobes sublinear-elongate, 0.5–2 mm wide; upper surface plane to convex, continuous, isidiate, the isidia short, simple, darkening at the tips; lower surface black, sparsely rhizinate. Apothecia adnate, 1–2 mm in diameter, the amphithecium isidiate; spores 8, 5–6 × 7–8 μm.
CHEMISTRY.—Cortex K+ yellow, medulla K+ yellow, C−, KC−, P+ pale orange; atranorin, stictic acid, and constictic acid.
DISTRIBUTION.—Union of South Africa.
HABITAT.—On rocks in open areas.
- 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
