Parmelinopsis subfatiscens (Kurok.) Elix & Hale

Parmelia subfatiscens

Parmelia subfatiscens Kurokawa in Hale and Kurokawa, 1964, p. 134.

TYPE COLLECTION.—Louis Trichardt, Zoutpansberg, Transvaal, Union of South Africa, Almborn 6443 (LD, holotype; US, isotype).

DESCRIPTION.—Thallus adnate on bark, 4–7 cm in diameter, greenish mineral gray; lobes sublinear-elongate, 0.5–1.5 mm mide; marginal cilia distinct, to 1.0 mm long; upper surface plane, continuous, pustulate laminally and subterminally, pustules not turning noticeably sorediate; lower surface black, densely rhizinate, the rhizines simple. Apothecia rare (not seen in Dominica), adnate, 1.5–4.0 mm in diameter; spores 8–9×12–14μ.

CHEMISTRY.—Cortex K+ yellowish (atranorin); medulla K–, C–, KC+ rose, P– (unknown substances). TLC analyses of the holotype of P. subfatiscens and the Dominican material are essentially identical in the major H2SO4+ spots. Two deep bluish spots appear in the benzene-dioxane solvent system, one above gyrophoric and the second near gyrophoric; in hexane-ether the main spot is near gyrophoric, the second below gyrophoric. The same components are known from P. horrescens Taylor, a closely related isidiate species. According to Dr. C. F. Culberson, one of these is related to or the same as glomelliferic acid.

WORLD DISTRIBUTION AND HABITATS.—West Indies, South Africa; on hardwood trees at mid-elevations (600–2,000 m).

Parmelia subfatiscens was first described from South African material. It was later identified in collections from Jamaica, following a distribution pattern known so far for P. exsplendens Hale and P. livida Taylor. The African type has scattered cilia among the pustules, but these are lacking in Dominica. This is a strictly rain forest lichen confined to the upper canopy of the trees and not easily collected except from felled trees. It belongs in section Imbricaria in the P. dissecta-P. horrescens group.

SPECIMENS EXAMINED.—Hale collections: 14 (35–558), 16 (35290, 35289, 35360), and 17 (35094, 35108, 35121, 35144, 35145).

Parmelinopsis subfatiscens je porost, co go nojprzōd ôpisoł Kurok., a terŏźnõ nazwã doł mu Elix & Hale. Parmelinopsis subfatiscens nŏleży do zorty Parmelinopsis i familije Parmeliaceae. Żŏdne podgatōnki niy sōm wymianowane we Catalogue of Life.