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 isidiosa (Müll.Arg.) Elix & J.Johnst. | ||
| in J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 274 (1986). Parmelia conspersa var. stenophylla f. isidiosa Müll.Arg., Hedwigia 31: 193 (1892); Parmelia isidiosa (Müll.Arg.) Hale, Bull. Torrey Bot. Club 82: 14 (1955). T: Victoria Desert, W.A., R.Helms 98; lecto: G, fide M.E.Hale, Smithsonian Contr. Bot. 74: 132 (1990). *****Parmelia refringens Kurok. & Filson, Bull. Natl Sci. Mus., ser. B, 1: 43 (1975); Xanthoparmelia refringens (Kurok. & Filson) Hale, Mycotaxon 20: 79 (1984). T: Wynbring Rocks, 1.2 km north of Wynbring on Transcontinental Railway line, S.A., 28 Oct. 1970, R.B.Filson 11940 p.p. min.; holo: MEL. *****[Parmelia conspersa var. isidiosa auct. non Nyl. [= Xanthoparmelia tinctina (Maheu & A.Gillet) Hale]: W.A.Weber & C.M.Wetmore, Beih. Nova Hedwigia 41: 71 (1972)]. *****[Parmelia tinctina auct. non Maheu & A.Gillet [= Xanthoparmelia tinctina (Maheu & A.Gillet) Hale]: R.B.Filson, Checklist of Australian Lichens 1st edn, 78 (1983)]. | ||
| Thallus small-foliose to subcrustose, tightly adnate, to 5 cm wide. Lobes imbricate or not, flat, irregular, irregularly branched, 0.8–1.5 mm wide. Upper surface pale yellow to yellow-green, dull, emaculate, without soredia; older lobes irregularly cracked and becoming areolate; isidia moderately dense, globose then cylindrical, commonly branched; isidia apices epicorticate, becoming inflated but rarely erumpent, not sorediose. Medulla white. Lower surface black; rhizines sparse, simple, 0.3–0.8 mm long, black. Apothecia rare, subpedicellate, to 6 mm wide; disc deeply concave, dark brown; thalline exciple thick, involute, lacerate, ±isidiate. Ascospores 7–10 × 4–6 µm. Pycnidia not seen. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, KC+ red, P+ orange; containing usnic acid, salazinic acid (major) and consalazinic acid. | ||
| Common and widespread on rock in arid and subarid areas of W.A., N.T., S.A., Qld and N.S.W. | ||
| Elix (1994z) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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