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 | ||
Menegazzia confusa P.James | ||
Lichenologist 19: 26 (1987) T: Lake Leake Rd, Tas., 24 Oct. 1980, G.Kantvilas 467/80; holo: HO; iso: BM. |
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Thallus closely appressed, forming rosettes, to 5 cm wide. Lobes at margin short, inflated, 1.5–3.5 mm wide, contiguous, irregularly dichotomously branched, at centre congested, folded, convex; secondary lobes rarely overlapping centre of thallus. Upper surface rugose, matt, shining and smoother only towards tips, pale grey to grey, rarely blackened laterally. Cavity rather coarsely tomentose, purplish brown-black. Perforations frequent, evenly distributed, to 2 mm wide, laminal; margin ±depressed. Apothecia frequent, 4–5 mm wide, laminal, sessile to subpedicellate; disc concave to flat, pale red-brown; exciple smooth, even, entire, becoming uneven and sparingly lacerate. Ascospores 2 per ascus, 40–52 × 26–31 µm; wall 2.5–4.5 µm. Pycnidia numerous, immersed, blackish around ostiole, sometimes coalescing and blackening upper surface. Conidia 6–7 × 0.5 µm. CHEMISTRY: cortex K+ yellow (atranorin); medulla K-, KC-, C-, P-(caperatic acid). | ||
This endemic species occurs in N.S.W., Vic. and Tas.; rather local in dry sclerophyllous open country and forest margins, on bark and dead wood of various trees and shrubs. | ||
James & Galloway (1992) |
Checklist Index |
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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