Relicina precircumnodata Hale

Relicina precircumnodata

Thallus adnatus, corticola, viridi-flavicans, 4–10 cm diametro, lobis sublinearibus, contiguis vel separatis, 1–2 mm latis, margine dense bulbo-ciliatis, bulbis globosis, sorediis isidiisque destitutis; cortex superior circa 12 μm crassus, stratum gonidiale 10 μm crassum, medulla 100–120 μm crassa, cortex inferior circa 12 μm crassus (Figure 2h); subtus pallide castaneus, dense rhizinosus, rhizinis pallidis, dense ramosis atque agglutinatis. Apothecia adnata, usque ad 2 mm diametro, amphithecio crenato, coronato, basin retrorso-rhizinato, hymenio 70–80 μm alto, sporis octonis, bicornutis, 2–3 × 11–13 μm.

CHEMISTRY.—Medulla K−, C−, P+ red, protocetraric and usnic acids.

HOLOTYPE.—Virgin dipterocarp forest, Tungao Logging Area, 40 km SE Butuan City, Agusan Province, Philippines, elevation about 400 m, M. E. Hale 25044a, July 1964 (US).

HABITATS.—On canopy branches of dipterocarps in rain forest at 100–400 m elevation.

DISTRIBUTION.—Philippines.