Australian Biological Resources Study
| Checklist of the Lichens of Australia and its Island Territories | ||
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References | ||
| Polyblastia cruenta (Körb.) P.James & Swinsc. | ||
| in T.D.V.Swinscow, Lichenologist 5: 110 (1971). T: Aupagrund, near Petzkretscham, [Czech Republic], 1848, coll. unknown; holo: L (Körber Stammherbar 910, 213–1364), n.v. | ||
| Thallus epilithic, smooth, continuous to sparingly rimose, diffuse to determinate, thin, filmy, medium to dark grey-brown to greenish black, 30–60 µm thick, becoming ±gelatinous when wet; prothallus not apparent. Perithecia superficial, hemispherical to subglobose, 0.46–0.92 mm diam., usually covered by a thin thalline layer; apex ±rounded. Involucrellum with a black outer layer, hyaline to pale greenish brown within. Exciple 20–30 µm thick, pale to dark brown. Centrum 0.3–0.6 mm wide. Periphyses 40–90 × c. 2 µm. Asci 8-spored, 170–220 × 75–90 µm. Ascospores muriform, ellipsoidal, 52–81 × 31–42 µm, colourless at first, becoming brown. . |  |
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| Occurs in Tas., on inundated dolerite boulders and bedrock in creeks and rivers. Also in Arctic Eurasia, central and western Europe, North America and New Zealand. | ||
| McCarthy (2001e) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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