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 | ||
| Usnea torulosa (Müll.Arg.) Zahlbr. var. torulosa | ||
| Cat. Lich. Univ. 6: 594 (1930); Usnea dasypogoides var. torulosa Müll.Arg., Flora 66: 19 (1883). T: Mt Kosciusko [Kosciuszko], N.S.W., 1882, Findlay 554; holo: G. ****Usnea glomerata Motyka, Usnea 2: 315 (1937). T: [Locality not known, but probably in Tas.], 1876, W.H.Archer; specimen not located. ****Neuropogon acromelanus var. inactivus I.M.Lamb, J. Linn. Soc., Bot. 52: 220 (1939). T: Mt Wellington, Tas., 1879, W.Campbell s.n., ex Herb. J.Stirton; holo: BM. | ||
| Thallus shrubby, erect, usually fasciculate, to 5 cm tall,pale yellow to yellow-green; branching sparsely dichotomous or subdichotomous; trunk black at base; branches terete, 0.5–1.0 mm wide; apices tapered or blunt, often blackened; branchlets and fibrils absent to moderately numerous; papillae rare. Isidia numerous in pseudocyphellae, dense, often eroded, short, sometimes black-tipped; pseudocyphellae discrete, often arranged in bands towards apices, numerous towards apices, medium-sized and punctiform or large and ±globose; soralia absent. Cortex smooth, waxy. Medulla inconspicuous, narrow, moderately dense; axis 1/2–2/3 width of branch, hyaline. Apothecia rare, lateral, c. 3 mm diam.; disc concave, with few fibrils on margin; lower surface smooth. Ascospores c.11 × 8 µm. CHEMISTRY: Cortex containing usnic acid. Medulla K–, containing squamatic acid (major) and ±consquamatic acid (trace), or psoromic acid (major), ±conpsoromic acid (minor) and ±2’-O-demethylpsoromic acid (trace), or (rarely) squamatic acid and diffractaic acid, or (rarely) psoromic acid and diffractaic acid, or lacking lichen substances. | ||
| Occurs on granite in subalpine, southern N.S.W., A.C.T. and Vic., with a single collection from north-eastern N.S.W.; on rock or shrubs on mountains in Tas. Also in New Zealand. | ||
| Stevens (2004) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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