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 dissitifolia Kurok. ex Elix & J.Johnst. | ||
| in J.A.Elix, J.Johnston & P.M.Armstrong, Bull. Brit. Mus. (Nat. Hist.), Bot. 15: 228 (1986). T: south of Collie, W.A., S.Kurokawa 6642; holo: TNS; iso: MEL. | ||
| Thallus small-foliose, tightly adnate, to 2–4 cm wide. Lobes rarely imbricate, radiating at periphery, flat, linear-elongate, dichotomously or subdichotomously branched, 0.3–0.7 (–1) mm wide; central lobes eventually eroding. Upper surface yellow-green, darkening with age, shiny, emaculate, lacking soredia and isidia; older lobes transversely fractured and areolae commonly formed; lobe margins distinctly blackened. Medulla white. Lower surface black; rhizines moderately dense, simple, black. Apothecia subpedicellate, 1–2 mm wide; disc slightly concave becoming flat or convex, dark brown to blackish; thalline exciple thin, entire then undulating or denticulate. Ascospores 8 × 5–6 µm. Pycnidia not seen. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, KC-, P+ yellow; containing usnic acid, norstictic acid (major), connorstictic acid (minor) and ±salazinic acid (trace). | ||
| Rare, occurs in N.S.W., A.C.T. and in coastal areas and the adjacent hinterland of south-western W.A., Tas. and Bass Strait Islands; also in South Africa. Grows on exposed rock. | ||
| Elix (1994z) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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