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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 subabstrusa (Gyeln.) Hale
  Phytologia 28: 485 (1974)
Based on Parmelia abstrusa f. laevigata Lynge, Ark. Bot. 13: 147 (1914); Parmelia subabstrusa Gyeln., Repert. Spec. Nov. Regni Veg. 29: 288 (1931); Parmelia kilauae f. laevigata (Lynge) Gyeln., Ann. Hist.-Nat. Mus. Natl Hung. 29: 37 (1935). T: Bocca da Serra, Serra da Chapada, Mato Grosso, Brazil, 15 June 1894, G.O.A.Malme s.n.; lecto: S, fide M.E.Hale, Smithsonian Contr. Bot. 26: 28 (1975). *****Parmelia limbata f. endococcinea Müll.Arg., Flora 70: 318 (1887); Parmelia endococcinea (Müll.Arg.) Gyeln., Repert. Spec. Nov. Regni Veg. 29: 288 (1931). T: Russell River, [Qld], Australia, W.A.Sayer 19; lecto: G, fide M.E.Hale, loc. cit. (1975). *****Parmelia decaryana Gyeln., Repert. Spec. Nov. Regni Veg. 36: 153 (1934). T: Tsantsani, Anjouan, Comoro Island, [Comoros], R.Decary s.n.; holo: BP.
  Thallus foliose, adnate, to 4–8 cm wide. Lobes contiguous centrally to separate at periphery, not imbricate, linear-elongate, dichotomously to subdichotomously branched, 0.5–2 mm wide, without lobules; cilia dense, conspicuous, strongly inflated, to 1 mm long. Upper surface yellow-green, flat, smooth, shiny at lobe apices, emaculate, without isidia. Lower surface black; rhizines dense, simple, black. Apothecia common, 1–3 mm wide; disc ±flat or shallowly concave, cinnamon-brown; thalline exciple strongly coronate. Ascospores ellipsoidal, 7–8 × 4–5 µm. Pycnidia common, flat to slightly emergent, punctiform, to 0.1 mm wide. Conidia bifusiform, 6–8 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, P+ orange; containing usnic acid, norstictic acid (major), connorstictic acid (trace) and ±hyposalazinic acid (trace).
  Rare in Australia, where it is known only from the bark of mangroves on Hinchinbrook Is. and from Russell R., Qld. Ithas the broadest geographic range of any species in the genus, occuring in Taiwan, the Philippines, Sarawak, Brazil, Paraguay and the Comoro Is.  
  Elix (1994v)  

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

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