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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
Diploschistes ocellatus (Vill.) Norman

Nyt. Mag. Naturvidensk. 7: 232 (1853)

Lichen ocellatus Vill., Hist. Pl. Dauph. 988 (1789); — Urceolaria ocellata (Vill.) DC., in J.B.A.P. de M. de Lamarck & A.P. de Candolle, Fl. Franc., 3rd edn, 2: 372 (1805); — Urceolaria scruposa var. ocellata (Vill.) Schaer., Lich. Helv. Spic. 2: 76 (1826); — Parmelia ocellata (Vill.) Fr., Lichenogr. Eur. Ref. 190 (1831); — Placodium ocellatum (Vill.) Link, Grundr. Kräuterk. 3: 189 (1832); — Lagerheimina ocellata (Vill.) Kuntze, Revis. Gen. Pl. 2: 478 (1891).

T: St Martin, Vaucluse, France, 1 Dec. 1962, G.Clauzade; neo: BM, fide H.T.Lumbsch, J. Hattori Bot. Lab. 66: 181 (1989); isoneo: M, MB, UPS.

Urceolaria subocellata Nyl., in J.M.Crombie, J. Linn. Soc., Bot. 17: 399 (1880); — Diploschistes subocellatus (Nyl.) Zahlbr., Cat. Lich. Univ. 2: 674 (1924). T: Risdon Cove, Tas., 1802–1805, R.Brown 563;lecto: BM, fide H.T.Lumbsch, J. Hattori Bot. Lab. 66: 181 (1989); isolecto: BM.

  Thallus superficial, to c. 4 mm thick, greyish white to white, dull to glossy, smooth or rough, verrucose-areolate, heavily whitish-pruinose. Epinecral layer to c. 40 µm thick. Algal layer continuous, well developed; calcium oxalate crystals sparse, scattered, large. Vegetative propagules not seen. Ascomata conspicuous, brown to blackish brown, to c. 4 mm diam., ±rounded, apothecioid, solitary, sessile. Disc visible from above, blackish brown, greyish- to whitish-pruinose; inner and apical proper exciple not visible from above. Thalline rim margin thin, ±rounded, concolorous with and having the same surface features as the thallus, erect. Proper exciple thin, reduced, blackish brown, non-amyloid. Hymenium 100–150 µm thick, not inspersed, moderately conglutinated; lateral paraphyses absent. Epihymenium hyaline to pale brown, granulose. Asci 8-spored. Ascospores broadly ellipsoidal, with ±rounded to subacute ends, hyaline to pale brown, non-amyloid, 20–32 × 7–15 µm, with 3–6 × 1–3 locules; locules ±rounded to angular; septa thick, regular; ascospore wall thin to thick; endospore thick. Pycnidia immersed; pore area blackish brown. Conidia 4–7 × 1.0–1.5 μm.
CHEMISTRY: Thallus K+ yellow → red, C–, P+ orange; containing norstictic acid (major), connorstictic acid (minor), subnorstictic acid (minor).
  Grows on calcareous soil and rock in semi-arid regions of W.A., S.A., Qld, N.S.W. and Tas.; common in mallee vegetation. Subcosmopolitan.  
  Mangold et al. (2009)  

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

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