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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 amphithrix Hale
  Smithsonian Contr. Bot. 26: 19 (1975)
T: Cameron Highlands, Pahang, Malaya, [Malaysia], 2 Mar. 1965, M.E.Hale 30203; holo: US.
  Thallus foliose, adnate, to 10 cm wide. Lobes contiguous, imbricate, sublinear, dichotomously or subdichotomously branched, 1–2 mm wide, elobulate; cilia dense, moderately inflated, to 2 mm long. Upper surface pale yellow-green to yellow-brown, flat to convex, dull, smooth, weakly maculate; isidia moderately dense, cylindrical, mainly simple, short. Lower surface black; rhizines moderately dense, shiny, simple, black. Apothecia rare, 1–4 mm wide; disc shallowly concave, cinnamon-brown to dark brown; thalline exciple coronate, isidiate, retrorsely rhizinate. Ascospores ellipsoidal to subglobose, 5–6 × 4–5 µm. Pycnidia subspherical, immersed. Conidia bifusiform, 5–6 × 1 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, P+ deep orange; containing usnic acid, norstictic acid (major), connorstictic acid (trace) and ±hyposalazinic acid (trace).
  Scattered in Qld on mangroves and on the trunks and canopy branches of coastal rainforest trees; also occurs in Malaysia, 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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