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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
Cetraria aculeata (Schreb.) Fr.
  Nov. Sched. Crit. Lich.: 26 (1826)
Lichen aculeatus Schreb., Spic. Fl. Lips. 125 (1771); Cornicularia aculeata (Schreb.) Ach., Methodus 302 (1803); Coelocaulon aculeatum (Schreb.) Link, Handbuch 3: 165 (1833). T: s. loc., coll. unknown; lecto: Herb. Dillenius, illustrated in Historia muscorum t. 17, fig. 31B, OXF, n.v., fide I.Kärnefelt, Opera Bot. 86: 51 (1986).
  Thallus erect or decumbent and scrambling, forming loosely attached clumps to c. 4 cm high and 10 cm wide, often dying at base, reddish brown to dark brown, occasionally partly blackened, somewhat paler in shaded portions. Lobes radially symmetrical, mostly to 1 mm wide, richly branched and entangled, terminating in stiff spine-like projections to 0.3 mm long. Surface glossy to matt, smooth to longitudinally furrowed, occasionally ±faveolate at axils of broader, older lobes; pseudocyphellae sparse to common, clearly depressed, elliptical to almost slit-like, to 1 mm long, white; soredia and isidia absent; cilia to 1 mm long (very rare in Australian material). Apothecia not seen in Australian material (rare, 2–5 mm wide; ascospores 5.5–6.5 × 2.5–3.5 µm (after Kärnefelt (1986)). Pycnidia along lobe margins and at apices. Conidia 7–7.5 × 0.5–0.8 µm. CHEMISTRY: medulla K-, C-, P-; lichesterinic and protolichesterinic acids.
  Local in montane and alpine areas in W.A., S.A., N.S.W., Vic. and Tas., occurring loosely on soil or among bryophytes and other lichens, or scrambling over low shrubs in heathland and moorland. Bipolar and found in cold environments on all continents.  
  Kantvilas (1994a)  

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

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