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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
Relicina sydneyensis (Gyeln.) Hale
  Phytologia 28: 485 (1974)
Parmelia sydneyensis Gyeln., Ann. Mycol. 36: 292 (1938). T: Mossman's Bay, Sydney, N.S.W., Jan. 1900, E.Cheel s.n.; holo: BP. *****Parmelia limbata f. isidiosa Müll.Arg., Flora 70: 59 (1887); Parmelia tumescens Hale & Kurok., Contr. U.S. Natl Herb. 36: 147 (1964). T: Richmond River, N.S.W., Australia, Hodgkinson; lecto: G, fide M.E.Hale, Smithsonian Contr. Bot. 26: 31 (1975). *****Parmelia subturgida Kurok., J. Jap. Bot. 40: 268 (1965). T: Bandagamori, Prov. Tosa, Japan, M.Makino s.n.; holo: TNS; iso: US.
  Thallus foliose, adnate, to 3–8 cm wide. Lobes contiguous, sparingly imbricate, sublinear-elongate, dichotomously to subdichotomously branched, 0.8–1.5 mm wide, elobulate; cilia moderately dense, tapered to strongly inflated, black. Upper surface yellow-green, flat, shiny at lobe apices, weakly maculate, irregularly cracked on older lobes; isidia dense, cylindrical, sparingly branched or rarely becoming coralloid. Lower surface brown to dark brown; rhizines moderately dense, simple or occasionally dichotomously branched, coarse, brown to black. Apothecia rare, 1.5–3.5 mm wide; disc ±flat or shallowly concave, cinnamon-brown; thalline exciple ecoronate, retrorsely rhizinate. Ascospores ellipsoidal, 7–8 × 4–5 µm. Pycnidia immersed, punctiform. Conidia weakly bifusiform, 7–9 × 1 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow, C-, P+ orange; containing usnic acid, norstictic acid (trace), stictic acid (major), constictic acid (minor), cryptostictic acid (trace), ±menegazziaic acid (trace), ±hypostictic acid (trace) and ±atranorin.
  Common on rock and trees in coastal and hinterland areas in eastern Australia, occurring from north Qld to southern N.S.W. In tropical areas this species is more common on trees, while in temperate regions the reverse is observed. Also known from Japan, Taiwan, Indonesia and Papua New Guinea.  
  Elix (1994v)  

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

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