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 crocata (L.) Vain. | ||
| Hedwigia 37: 34 (1898); Lichen crocatus L., Mantissa 310 (1771). T: India, Koenig; holo: LINN 1273.137. | ||
| Thallus rosette-forming to irregularly spreading, loosely to closely attached, 5–10 (–20) cm wide. Lobes broadly rounded and ±plane to narrow, canaliculate, deeply laciniate and discrete from margins to centre, to complex-imbricate, 1–5 (–7) cm long, 5–10 (–35) mm wide; lobe margins entire to ragged-incised, wavy, sorediate; soralia punctiform to linear, often eroding to lower surface. Upper surface fawnish grey to glaucous or brownish yellow when dry, grey-blue to bluish brown when wet, plane, undulate, shallowly wrinkled to densely faveolate, occasionally patchily short-tomentose, maculate and sorediate, without isidia, phyllidia or pseudocyphellae. Maculae delicate, white, distinctly reticulate, following ridges and in faveolae (×10 lens). Soredia common, yellow, farinose to granular, laminal and marginal, randomly scattered in erose laminal soralia, or erupting from laminal ridges. Medulla white to patchily yellow-white. Photobiont Nostoc. Lower surface pale whitish to buff, tomentose from margins to centre. Pseudocyphellae scattered, yellow. Apothecia sessile, marginal and laminal, 0.3–2.5 mm diam.; disc pale to dark red-brown, epruinose; exciple pinkish, verrucose-areolate; epithecium dark yellow-brown to olive-brown, dissolving in K; hymenium colourless to pale straw-yellow; hypothecium opaque, yellow-brown to red-brown intensifying in K. Ascospores broadly ellipsoidal, 3-septate, 22.5–27 (–29.5) × 7–9 µm, olive-brown to dark brown. CHEMISTRY: Tenuiorin, methyl gyrophorate, gyrophoric acid, hopane-7β,22-diol (trace), hopane-6α,7β,22-triol, 7β-acetoxyhopane-6α,22-diol (trace), 6α-acetoxyhopane-7β,22-diol (trace), physciosporin (trace), norstictic acid (trace), stictic acid, cryptostictic acid, (trace), constictic acid, pulvinic acid, pulvinic dilactone and calycin. |  |
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| A cosmopolitan species which occurs in south-western W.A., southern S.A., north-eastern Qld, eastern N.S.W., A.C.T., southern Vic. and Tas.; also Lord Howe Is. and Norfolk Is. It is an ecologically wide-ranging taxon in well-lit situations on decorticated wood, bark or rocks, often over bryophytes. The most prolific populations in Tas. are found on rocks in sclerophyll forest. | ||
| Galloway et al. (2001) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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