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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
Xanthoparmelia molliuscula (Ach.) Hale
  Phytologia 28: 488 (1974); Parmelia molliuscula Ach., Lichenogr. Universalis 492 (1810). T: Cap. Bonae Spei [Cape of Good Hope], South Africa, Thunberg; holo: H-Ach; iso: UPS–Ach. *****Parmelia thamnidiella Stirt., Trans. Glasgow Soc. Field Naturalists 5: 213 (1877). T: Somerset East, South Africa, P.MacOwen; lecto: BM; isolecto: PRE, fide M.E.Hale, Smithsonian Contr. Bot. 74: 149 (1990). *****Parmelia subpumila Elix, Austral. J. Bot. 29: 372 (1981). T: 20 km west of Swan Reach along the Sedan road, S.A., 16 Dec. 1976, J.A.Elix 2765; holo: MEL; iso: CBG. *****[Parmelia congruens auct. non Ach. [= Pseudoparmelia congruens (Ach.) Hale]: W.A.Weber & C.M.Wetmore, Beih. Nova Hedwigia 41: 70 (1972)].  
  Thallus foliose, unattached or loosely adnate, forming rosettes to 4–6 cm wide. Lobes loosely imbricate, sublinear, subirregularly to subdichotomously branched, narrow at apices (0.7–1.5 mm), wider at base (to 6 mm); lobules in thallus centre, extensively branched, ascending, subterete to cylindrical, 0.2–0.4 mm wide, sometimes tipped with black at apices. Upper surface yellow to yellow-green, convex, glossy or dull, emaculate, smooth becoming rugulose, lacking soredia and isidia; lobe margins often black. Medulla white. Lower surface ±canaliculate, shiny, rugose, shallowly faveolate, pale brown to tan; rhizines sparse to moderately dense, simple, tufted or branched, ±dichotomously or palmately branched, brown to black. Apothecia not seen in Australian material. Pycnidia rare. Conidia bifusiform, 5–7 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then orange, C-, P+ orange; containing usnic acid, stictic acid (major), constictic acid, norstictic acid (minor), cryptostictic acid (trace) and with or without associated unidentified compound (trace).
  Scattered on arid soils in mallee areas of southern Australia (W.A., S.A., Vic. and Tas.); also on the South Is. of New Zealand and in South Africa.  
  Elix (1994z)  

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

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