Comprehensive Description
provided by Smithsonian Contributions to Botany
Pseudoparmelia xanthomelaena
Pseudoparmelia xanthomelaena (Müller Argoviensis) Hale, 1974:191.
Parmelia xanthomelaena Müller Argoviensis, 1883a:48 [type collection: Grampian Mountains, Australia, Sullivan 28 (G, lectotype)].
DESCRIPTION.—Thallus closely appressed on rock, buff mineral gray but darkening to brownish olive gray at the center, 3–5 cm broad; lobes sublinear, contiguous, lobulate, 0.5–1.5 mm wide; upper surface plane, shiny, transversely rimose with age; lower surface black, moderately rhizinate. Apothecia common, adnate, up to 1 mm in diameter; spores 8, 6 × 7–10 μm.
CHEMISTRY.—Cortex K+ yellow, medulla K+ yellow, C−, KG−, P+ orange; atranorin, stictic acid, and constictic acid.
DISTRIBUTION.—Union of South Africa and Australia.
HABITAT.—Exposed rocks from sea level to 250 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
