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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
Hypogymnia billardieri (Mont.) Filson
  Victorian Naturalist 87: 325 (1970); Cetraria billardieri Mont., Syll. Gen. Sp. Crypt. 322 (1856); Parmelia billardieri (Mont.) Zahlbr., Cat. Lich. Univ. 6: 26 (1930). T: without specific locality, Australia, J.Labillardière; holo: VER n.v. ****Parmelia conferta Taylor, London J. Bot. 6: 164 (1847). T: without specific locality, Tas., 1839, Borrer; holo: FH. ****Parmelia placorhodioides Nyl., Syn. Meth. Lich. 1: 401 (1860); Parmelia physodes var. placorhodioides Müll. Arg., Flora 66: 76 (1883). T: without specific locality, Australia, Verreaux et al.; syn: n.v.; Tas., A.Oldfield s.n.; syn: BM. ****Parmelia physodes var. leucina Müll. Arg., Bull. Herb. Boissier 4: 90 (1896). T: Dargo, Vic., c. 1890, R.Holt; holo: G.  
  Thallus placodioid, forming orbicular patches to 10 cm wide. Lobes diverse; marginal lobes flattened, contiguous, with rotund apices 2–7 mm wide; central lobes contiguous forming a compact, wrinkled surface; central portion of younger thalli consisting of small, short, irregularly and sparingly branched lobes 1–2 mm wide. Upper surface pale grey to grey. Medulla mostly solid. Lower surface pale brown or whitish near lobe apices. Apothecia common, 2–12 mm wide, subpedicellate; pedicel and thalline exciple wrinkled; exciple thin, involute especially when young; disc concave at first, becoming convex and irregular, pale brown to brown. Ascospores 5–8 × 3.5–6.5 µm. CHEMISTRY: cortex K+ yellow; medulla KC+ red, P-. Atranorin, chloroatranorin, physodic acid (major); 3-hydroxyphysodic acid, 2'-O-methylphysodic acid (minor); aletoronic acid (trace).
  Occurs in S.A., Qld, N.S.W., A.C.T., Vic. and Tas. On bark, twigs and dead wood in dry sclerophyll forests. Also in New Zealand.  
  Elix (1992a)  

Checklist Index
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References

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