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 | ||
| Pseudocyphellaria gilva (Ach.) Malme | ||
| Bih. Kongl. Svenska Vetensk.-Akad. Handl. 25(3/6): 32 (1899); Lichen gilvus Ach., Lich. Suec. Prodr. 157 (1799). T: "Cap B. Spei" [Cape of Good Hope], South Africa, C.P.Thunberg; lecto: UPS-THUNBERG 26816, fide D.J.Galloway, Biblioth. Lichenol. 46: 130 (1992). | ||
| Thallus rosette-forming to irregularly spreading, loosely attached, 2–12 (–20) cm wide; margins ±free. Lobes broadly rounded, 1–3 cm wide and with ±dichotomously branching apices to ±regularly dichotomously branched and 2–6 mm wide, contiguous to complex-imbricate; lobe margins entire, thickened above and below, with or without prominent projecting yellow pseudocyphellae. Upper surface pale greyish brown or olive-brown or chestnut-brown when dry, dark blue-black suffused red-brown when wet, undulate to faveolate, matt or slightly glossy, minutely maculate; without isidia, phyllidia, pseudocyphellae or soredia. Maculae effigurate to reticulate (×10 lens), white to red-brown. Medulla white. Photobiont Nostoc. Lower surface pale to dark brown to ±black, glabrous at margins, tomentose centrally; tomentum woolly, red-brown to black. Pseudocyphellae prominent, yellow, conical-verruciform, round to irregularly sulcate, 0.05–0.6 mm diam.; margins swollen, concolorous with lower cortex; decorticate area plane to concave. Apothecia rare to occasional, marginal and laminal, sessile to subpedicellate; disc pale to dark red-brown, occasionally faintly grey-pruinose; exciple at first brick-red to orange, becoming greyish with age; epithecium red-brown to dark olive-brown, K+ purplish brown; hymenium pale yellow-brown; hypothecium dark yellow-brown, K–. Ascospores fusiform-ellipsoidal, 1–3-septate, 22–30 × 9–11 µm, red-brown. CHEMISTRY: Tenuiorin, methyl gyrophorate, hopane-6α,7β,22-triol, stictic acid, cryptostictic acid, constictic acid, norstictic acid (trace), calycin, pulvinic acid and pulvinic dilactone. |  |
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| Occurs in eastern Qld, eastern N.S.W. and Tas., on living and dead wood and on rocks in open, well-lit situations in forest and scrub. Also in the Palaeotropics from the Cape of Good Hope to New Guinea, and in southern South America. | ||
| Galloway et al. (2001) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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