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 | ||
| Chrysothrix granulosa G.Thor | ||
Bryologist 91: 361 (1988) T: Copiapó, Atacama Province, Chile, 13 July 1940, R.Santesson 2701; holo: S n.v.; iso: BM, UPS n.v. |
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| Thallus crustose, lemon-yellow, usually distinctly stratified, adnate, composed of rounded and convex sometimes placodioid cushions 5–20 mm wide; these can become confluent in part, more rarely forming diffuse scattered granules. Soredia fine, with individual granules convex to spherical, 20–65 μm wide. Medulla distinct, ±byssoid, yellow in the upper part, pale yellow to almost white below. Photobiont cells ±globose, 8–20 μm wide, solitary or a few cells aggregated. Apothecia not seen in Australian specimens [Reported to be rare,
0.2–1.0 mm wide, rounded, with a constricted base; disc brownish orange, yellow-pruinose, plane to convex; true exciple poorly developed; hymenium colourless or pale yellow, 60–70 μm thick; epihymenium yellow, forming a distinct layer of richly branched paraphyses; hypothecium colourless, fusing into the medulla, hard and opaque; ascospores 3-septate, obovate, straight, 11–15 × 3 μm (Thor, 1988)]. CHEMISTRY: Thallus K+ orange, C–, KC–, P+ orange, UV+ dull orange; containing diffractaic acid, calycin. |
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| Known from W.A. and Tas.; occurs in dry, sheltered overhangs, on rock, wood or bark. Also in North and South America and New Zealand. | ||
| Elix (2009d) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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