Relicina acrobotrys (Kurok.) Hale

Relicina acrobotrys

Relicina acrobotrys (Kurokawa) Hale, 1974:484.

Parmelia acrobotrys Kurokawa in Hale and Kurokawa, 1964:142 [type-collection: Tjibodas, Java, Neervoort 60 pr. p. (BO, holotype; US, isotype)].

Thallus adnate on bark, rather coriaceous, 6–12 cm in diameter; lobes sublinear-elongate, 1–2.5 mm wide, narrowly black rimmed; bulbate cilia tapered, not strongly inflated; upper surface plane or rugulose, continuous; lower surface black, densely rhizinate except for a narrow brown zone near the tips, the rhizines black, irregularly densely branched (Figure 8d). Apothecia numerous (frequency 100%), adnate, 1–2.5 mm in diameter, ecoronate, with basal retrorse rhizines; spores 8, 2–3 × 4–6 μm.

CHEMISTRY.—Medulla K+ yellow turning red, C−, KC− or KC+ orange, P−, atranorin, usnic, consalazinic, and salacinic acids with or without barbatic acid and 4-0-demethylbarbatic acid.

HABITATS.—On trunk and branches of Quercus in open forests at 1400–1600 m elevation.

DISTRIBUTION.—Java and Sabah.