Ocellularia conglomerata Hale

Ocellularia conglomerata Hale

Thallus corticola, cinereo-albidus, epiphloeodes, continuus, nitidus, 4–5 cm latus; apothecia primo solitaria, 0.6–0.9 mm diametro, semi-emergentia, mox 2–3:nae conglomerata, margine exteriore erecto, excipulo interiore evoluto, pulverulento, disco aperto, carneo; ostiolum irregulare, latum; hymenium 70μ altum; sporae 8:nae, transversim 6–7 loculatae, 5μ–6μ × 15μ–18μ, I+ coerulescentes (Figure 9h).

CHEMISTRY.—Stictic and constictic acids.

HOLOTYPE.—Trail to Morne Anglais, Dominica, elevation about 900 m, Hale 37959, 13 December 1971 (US).

Chemistry places this species near O. exanthismocarpa but the exciple is not so clearly separate from the thick, erect, pulverulent margin, leaving the disc open. The spores are much smaller. Another West Indian stictic acid-containing species, Ocellularia alboolivacea (Vainio) Zahlbruckner, has a more typically recurved margin and a thin, entire exciple.