Relicina samoensis (Zahlbr.) Hale

Relicina samoensis

Relicina samoensis (Zahlbruckner) Hale, 1974:485.

Parmelia samoensis Zahlbruckner, 1908:272 [type-collection: Malifa, Upolu, Rechinger 5005 (W, lectotype)].

Thallus adnate to closely adnate, corticolous, 4–8 cm in diameter; lobes rather short, sublinear, 0.3–1 mm wide; bulbate cilia conspicuous, globose, up to 1 mm long; upper surface plane, continuous; lower surface black, densely rhizinate, the rhizines black, simple or sparsely branched. Apothecia adnate, very common (frequency 100%), 1–3 mm in diameter, the exciple coronate, the base retrorsely rhizinate; spores 8, 5–6 × 6–7 μm.

CHEMISTRY.—Medulla K+ yellow, C+ faint orange, KC−, P+ yellow orange, usnic and echinocarpic acids and a C+ unknown.

HABITAT.—On coconut palm and other trees in disturbed areas at 100–700 m elevation.

DISTRIBUTION.—Philippines, Java, New Caledonia, Samoa, and Society Islands.