Pseudoparmelia molybdiza

Pseudoparmelia molybdiza

Pseudoparmelia molybdiza (Nylander) Hale, 1974:190.

Parmelia molybdiza Nylander in Crombie, 1876a: 19 [type collection: Table Mountain, Cape of Good Hope, Union of South Africa, Eaton (BM, lectotype; H, Nylander herbarium number 35234, isolectotype)].

Parmelia atrichoides Nylander in Crombie, 1876b: 167 [type collection: Cape of Good Hope, Union of South Africa, Eaton (BM, lectotype; H, isolectotype)].

Parmelia brachyphylla Müller Argoviensis, 1886:256 [type collection: Near Lydenburg, Transvaal, Union of South Africa, Wilms 2752 (BM, lectotype).

Parmelia perfissa Steiner and Zahlbruckner, 1926:519 [type collection: Port Elizabeth, Cape Province, Union of South Africa, Brunnthaler (W, lectotype; WU, isolectotype)].

DESCRIPTION.—Thallus adnate to appressed on rock, whitish mineral gray, 4–8 cm broad; lobes sub-irregular, apically rotund, crowded toward the thallus center, 2–3 mm wide; upper surface plane, rimose with age; lower surface dark brown and blackening, moderately rhizinate. Apothecia numerous, adnate, 1–2.5 mm in diameter; spores 8, 5 × 6 μm.

CHEMISTRY.—Cortex K+ yellow, medulla K−, C+, KC+ red, P− ; atranorin and lecanoric acid.

DISTRIBUTION.—Uganda and Union of South Africa.

HABITAT.—On rocks in open or partly shaded habitats from sea level to about 1200 m elevation.