


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 berkeleyana (Mont.) Zahlbr. | ||
| in H.G.A.Engler & K.A.E.Prantl, Nat. Pflanzenfam.,1, 1: 118 (1905) Stegobolus berkeleyanus Mont., in J.D.Hooker, London J. Bot. 4(3): 4 (1845); — Thelotrema berkeleyanum (Mont.) Brusse, Mycotaxon 31: 547 (1988). T: Philippines, H.Cuming 2185; iso: BM. | ||
| Thallus endophloeodal to epiphloeodal, to c. 200  µm thick, pale greyish or yellowish green to pale olive, ±glossy, smooth,  continuous to rimose. True cortex continuous or discontinuous, to c. 20 µm  thick, formed by periclinal hyphae. Algal layer well developed, continuous;  calcium oxalate crystals mostly small and scattered. Schizodiscs to 0.6 mm diam.,  whitish. Ascomata ±conspicuous, to c. 1.2 mm diam., ±rounded to slightly irregular,  apothecioid, solitary or fused to strongly clustered, with several ascomata  sharing a common thalline rim, ±markedly emergent, broadly cylindrical to  depressed-subglobose. Disc and columella visible from above in mature ascomata;  disc greyish-pruinose; columella distinctly pruinose, whitish or yellowish,  often fused with the thalline rim, entire to distinctly reticulate (especially in  clustered ascomata). Pores small to gaping, to c. 0.8 mm diam., ±rounded to  irregular, entire; proper exciple apex occasionally becoming visible from above,  partly free, shrunken, whitish, ±pruinose, incurved to erect. Thalline rim margin  broad to gaping, ±rounded to ±irregular, thick, entire, initially concolorous  with the thallus, becoming coarsely split or eroded and whitish-pruinose;  thalline rim incurved to erect. Proper exciple fused to apically free,  moderately thick, yellowish brown to brownish, dark brown or slightly  carbonised in upper parts, apically ±covered by greyish granules, non-amyloid.  Hymenium to c. 90 µm thick, not inspersed, strongly conglutinated; paraphyses  straight to slightly bent, ±interwoven, unbranched, with slightly thickened  tips; columellar structures well-developed, to  300 µm wide, entire to strongly complex (especially in fused ascomata),  brownish to slightly carbonised, covered with a ±thick layer of greyish  granules. Epihymenium hyaline, with greyish to brownish granules and small  crystals. Asci 8-spored; tholus initially thick, becoming thin. Ascospores  transversely septate, fusiform to broadly clavate, with narrowly rounded to  subacute ends, hyaline, amyloid, 10–20 × 5–8 µm, with 3–6 locules; locules ±rounded  to slightly angular, oblong to lentiform or ±irregular; septa thick, regular to  slightly irregular; ascospore wall thick, thinly halonate; endospore thick. Pycnidia  not seen. CHEMISTRY: Thallus K+ yellowish, C–, P+ yellow; containing psoromic acid (major), 2’-O-demethylpsoromic acid (trace), subpsoromic acid (trace). | ||
| Occurs on bark in open sites in rainforest, rarely in wet-sclerophyll forest, in eastern Qld and north-eastern N.S.W., at altitudes of 250–800 m; mainly pantropical. | ||
| Mangold et al. (2009) | ||
| Checklist Index | 
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References | 
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