Comprehensive Description
provided by Smithsonian Contributions to Botany
Pseudoparmelia tortula
Pseudoparmelia tortula (Kurokawa) Hale, 1974:191.
Parmelia tortula Kurokawa in Hale and Kurokawa, 1964:157 [type collection: Namaqualand, Cape Province, Union of South Africa, Almborn 4805 (LD, holotype; TNS, US, isotypes)].
DESCRIPTION.—Thallus closely adnate on rock, whitish mineral gray, 5–10 cm in diameter; lobes subirregular to sublinear, apically subrotund, crowded toward the center, 1.5–4 mm wide, often twisted and contorted when free from the substratum; upper surface plane to rugulose or undulate, continuous, sometimes faintly pruinose; lower surface pale brown, sparsely rhizinate, the rhizines brown. Apothecia adnate to substipitate, 1–5 mm in diameter; spores 5–6 × 7–9 μm.
CHEMISTRY.—Cortex K+ yellow, medulla K−, C−, KC− or KC+ faint rose, P−; atranorin, norlobaridone, and neoloxodic acid.
DISTRIBUTION.—Union of South Africa.
HABITAT.—On rocks in open treeless or sparsely vegetated areas up to 1000 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
