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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
Usnea molliuscula Stirt. subsp. molliuscula
  Scott. Naturalist (Perth) 7: 77 (1883). T: Ovens R., Vic., 1882, Mrs McCann s.n.; lecto: GLAM, n.v., fide R.W.Rogers, Austrobaileya 1: 509 (1982); isolecto: BM.  
  Thallus erect to subpendulous, usually 5 (rarely to 8) cm long, pale green or greenish yellow; branching at holdfast subdichotomous to irregular; trunk pale, rarely black; branches often conspicuously inflated and foveolate in places, 1.0–1.5 mm wide, constricted at basal joint; apices attenuate; without branchlets; fibrils sparse, long and curved, often 5 (rarely to 10) mm long; papillae mainly on secondary and tertiary branches, sparse to moderately dense. Isidia, pseudocyphellae and soralia absent. Cortex dull. Medulla arachnoid; axis 1/5–1/3 width of branch, hyaline. Apothecia numerous, terminal, 10–20 mm diam.; disc concave to plane; margin with a single row of sparse to moderately dense fibrils to 7 mm long; lower surface smooth or rarely papillate or slightly fibrillate. Ascospores 8.0–9.5 × 5.0–6.5 µm. CHEMISTRY: Cortex containing usnic acid. Medulla K+ red or K–; containing salazinic acid (major), ±trace amounts of norstictic acid, consalazinic acid or galbinic acid.
  Occurs in forest in montane and subalpine areas of N.S.W., A.C.T., Vic. and Tas.  
  Stevens (2004)  

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

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