Relicina fluorescens (Hale) Hale

Relicina fluorescens

Relicina fluorescens (Hale) Hale, 1974:484.

Parmelia fluorescens Hale, 1965:202 [type-collection: between Kambaranga and the second radio tower, Tourist Trail, Kinabalu National Park, Sabah, Hale 28637 (US, holotype; TNS, isotype)].

Thallus loosely attached to adnate, coriaceous, corticolous, 4–7 cm broad; lobes sublinear-elongate, 1–3 mm wide; bulbate cilia tapered, not strongly inflated; upper surface plane to rugulose and finely pitted, faintly maculate; upper cortex strongly columnar (Figure 5a); surface black, densely rhizinate, the rhizines simple to sparsely branched. Apothecia common (frequency 50%), adnate, 2–3 mm in diameter, ecoronate, usually with basal retrorse rhizines; spores 8, 4 × 5 μm.

CHEMISTRY.—Medulla K−, C−, KC+ rose, or P− or P+ usnic and alectoronic acids with or without echinocarpic acid or echinocarpic acid alone in the medulla.

HABITATS.—On trunk and branches of Quercus and other trees in open forest at 1600 to 2400 m elevation.

DISTRIBUTION.—Sabah and New Guinea.