Relicina subabstrusa (Gyeln.) Hale

Relicina subabstrusa

Relicina subabstrusa (Gyelnik) Hale, 1974:485.

Parmelia subabstrusa Gyelnik, 1931:288 [based on P. abstrusa f. laevigata Lynge].

Parmelia limbata f. endococcinea Müller Argau, 1887:318 [type-collection: Russell River, Australia, Sayer 19 (G, lectotype)].

Parmelia abstrusa f. laevigata Lynge, 1914:147 [type-collection: Bocca da Serra, Serra da Chapada, Mato Grosso, Brazil, Malme (S, lectotype)].

Parmelia endococcinea (Müller Argau) Gyelnik, 1931:288.

Parmelia decaryana Gyelnik, 1934:153 [type-collection: Tsantsani, Anjouan, Comoro Island, Decary (BP, holotype)].

Parmelia kilauae f. laevigata (Lynge) Gyelnik, 1935:37.

Thallus adnate on bark, 4–8 cm broad; lobes sublinear, 0.5–2 mm wide; bulbate cilia numerous, strongly inflated, to 1 mm long; upper surface plane, continuous; lower surface black, densely rhizinate, the rhizines black, simple (Figure 8c). Apothecia very common (frequency 83%), adnate, 1–3 mm in diameter, the exciple strongly coronate; spores 8, 4 × 7–8 μm.

CHEMISTRY.—Medulla K+ yellow turning red, C−, KC−, P+ orange, norstictic and usnic acids with or without salazinic acid.

HABITAT.—On trunk and branches of dipterocarps in Old World rain forest and in secondary forest at sea level to 850 m elevation and on trees at mid elevations in the New World.

DISTRIBUTION.—Taiwan, Philippines, Sarawak, Australia, Comoro Islands, Brazil, and Paraguay.