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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 planiuscula (Kurok.) Hale
  Phytologia 28: 484 (1974)
Parmelia planiuscula Kurok. in M.E.Hale & S.Kurokawa, Contr. U.S. Natl Herb. 36: 144 (1964). T: Kandang Badak, Java, Indonesia, 27 May 1949, Neervoort 427; holo: BO; iso: US.
  Thallus foliose, adnate, to 9 cm wide. Lobes contiguous, imbricate, sublinear-elongate, dichotomously or subdichotomously branched, 1–3 mm wide; cilia moderately dense, tapering, only weakly inflated, to 1.5 mm long. Upper surface pale yellow-green, flat to convex, shiny, smooth, emaculate or faintly maculate; isidia sparse to moderately dense, cylindrical, erect or frequently procumbent, very rarely with a few lobules, simple, short (to 0.7 mm high); upper cortex strongly columnar. Lower surface black; rhizines moderately dense, simple, black. Apothecia rare, 1–2 mm wide; disc shallowly concave, cinnamon-brown to dark brown; thalline exciple ecoronate, isidiate, erhizinate. Ascospores subglobose, c. 5 × 4 µm. Pycnidia not seen. CHEMISTRY: cortex K-, UV-; medulla K+ pale yellow, C+ faint yellow-orange, P+ yellow; containing usnic acid, echinocarpic acid, conechinocarpic acid, unidentified compounds (traces) and ±atranorin.
  Scattered on bark of mangroves and other trees in coastal and drier hinterland areas of north Qld; rarely on rock in open forests. Also occurs in Japan, Taiwan, West Malaysia, Sabah, Indonesia, the Philippines and Papua New Guinea.  
  Elix (1994v)  

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

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