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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
Ocellularia baileyi Müll.Arg.

Hedwigia 32: 51 (1891)

T: Bellenden Ker, Qld, 1889, F.M.Bailey 590; holo: G; iso: BRI, COLO, G, NSW, NY.

Stegobolus carneopustulatus Frisch & Kalb, in A.Frisch, K.Kalb & M.Grube, Biblioth. Lichenol. 92: 446 (2006). T: near Lake Placid, S of Kuranda, Qld, K. & A.Kalb 19995; holo: CANB.

  Thallus endophloeodal to epiphloeodal, to c. 200 µm thick, pale greenish to olive, ±glossy, smooth, usually moderately to strongly verrucose, rimose or not, the whitish to pale reddish medulla becoming visible in soralia. True cortex continuous or discontinuous, to c. 10 µm thick, formed by periclinal hyphae. Algal layer well developed, continuous, often appearing discontinuous due to crystal inclusions; calcium oxalate crystals abundant, rather small to large, scattered or clustered. Soralia usually present, sometimes indistinct, formed either by moderately to strongly raised verrucae or by undefined thallus structures; soredia powdery to subgranular, whitish to pale reddish. Ascomata inconspicuous to conspicuous, to c. 1.2 mm diam., ±rounded to irregular, apothecioid at maturity, solitary or fused, immersed to ±distinctly emergent, mostly hemispherical to urceolate. Disc ±distinctly white-pruinose, off-white to brownish, sometimes only slightly pruinose and dark grey, free, entire to slightly irregular or cracked, especially in older ascomata; columella visible from above. Pores mostly formed by the thalline rim margin, small to gaping, to c. 0.8 mm diam., ±rounded to slightly irregular, entire to ±split or eroded, thick, in eroded margins the apical proper exciple becoming visible from above as a brownish or darker line, otherwise concolorous with the thallus or brighter, older ascomata having pores with gaping margins; detached apical proper exciple sometimes becoming visible from above, entire, whitish, erect to slightly recurved; thalline rim incurved to erect, sometimes sorediate, cracked to eroded, exposing the whitish to pale reddish medulla. Proper exciple fused to partly free, moderately thin to moderately thick, yellowish brown to pale brownish internally, brown or faintly carbonised marginally, rarely strongly carbonised, sometimes amyloid at the base. Hymenium to c. 180 µm thick, not inspersed, strongly conglutinated; paraphyses ±bent to curly, especially towards the unbranched and unthickened to slightly thickened apices, parallel to slightly interwoven; columellar structures well-developed, to c. 500 µm wide, usually entire, rarely complex, brown, usually distinctly carbonised at the base, covered by a ±thick layer of greyish or brownish granules; subhymenial layer often conspicuously dark brown to ±carbonised. Epihymenium hyaline, rarely with greyish or brownish granules. Asci 8-spored; tholus initially thick, becoming moderately thin. Ascospores transversely septate, rarely with 1 longitudinal septum, oblong to fusiform or clavate, with ±rounded to subacute ends, hyaline, distinctly amyloid, 18–35 (–40) × 6–9 µm, with 4–10 (–12) locules; locules ±rounded to slightly angular, oblong to lentiform or ±irregular; end cells hemispherical to conical; septa thin, regular; ascospore wall thick, non-halonate; endospore thick. Pycnidia in verrucae; pore area concolorous with the thallus or darker. Conidia bacilliform, to 6 × 1 µm.
CHEMISTRY: Thallus K–, C–, P–; containing norisonotatic acid (major), norsubnotatic acid (major to trace).
  A common, endemic species on bark in lowland to montane rainforest (to 1200 m) in eastern Qld.  
  Mangold et al. (2009)  

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

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