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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 terebrata (Ach.) Müll.Arg.

Mém. Soc. Phys. Genève 29(8): 7 (1887)

Thelotrema terebratum Ach., Kongl. Vetensk. Acad. Nya Handl. 33: 88 (1812).

T: “In America ad corticem Cinchonae flavae”, coll. unknown; holo: H-ACH 744; iso: H-NYL.

Thelotrema calvescens Fée, Essai Crypt. Écorc. 89 (1825); Ocellularia calvescens (Fée) Müll.Arg., Mém. Soc. Phys. Genève 29(8): 8 (1887); Myriotrema calvescens (Fée) Hale, Mycotaxon 11: 132 (1980). T: “America ad cortices Cinchonarum”, coll. unknown; isolecto: H-NYL 22728, fide M.E.Hale, Smithsonian Contr. Bot. 38: 15 (1978).

Thelotrema comparabile Kremp., Flora 59: 220 (1876); Ocellularia comparabilis (Kremp.) Müll.Arg., Jahrb. Königl. Bot. Gart. Berlin 2: 318 (1883). T: Rio de Janeiro, Brazil, A.Glaziou 5463; iso: C, UPS.

Ocellularia sexlocularis Zahlbr., in H.Magnusson & A.Zahlbruckner, Ark. Bot. 31A(1): 48 (1943). T: Haleakala, Hawai’i, Hawaiian Islands, U.Faurie 678; iso: BM.

Ocellularia pluripora Hale, Bull. Brit. Mus. (Nat. Hist.), Bot. 8: 319 (1981). T: Sabaragamuwa, Sri Lanka, M.E.Hale 51168; holo: US; iso: BM.

  Thallus endophloeodal to epiphloeodal, to c. 200 µm thick, pale greenish grey to olive, ±glossy, smooth, continuous to slightly verrucose, ±rimose. True cortex discontinuous, to c. 20 µm thick, formed by periclinal hyphae. Algal layer well developed, continuous; calcium oxalate crystals abundant, small to moderately large, scattered or clustered. Vegetative propagules not seen. Ascomata ±inconspicuous, to c. 1 mm diam., ±rounded, apothecioid when mature, solitary to fused, immersed to moderately raised, then hemispherical. Disc with the columella visible from above in older ascomata, pruinose, off-white, free or fused with the thalline rim, entire. Proper exciple not visible from above; thalline rim margin to 0.4 mm diam., ±rounded to slightly irregular, entire to split or slightly eroded, moderately thin, paler than the thallus to off-white; thalline rim incurved. Proper exciple fused, thin, orange to brownish marginally and below, brown to carbonised apically, occasionally amyloid at the base. Hymenium to c. 150 µm thick, not inspersed, moderately conglutinated; paraphyses ±bent to curly in upper parts, ±interwoven, unbranched, with slightly thickened tips; columellar structures present in mature ascomata, usually poorly developed, to 200 µm wide, entire, often overlaying the hymenium, carbonised, covered by greyish granules. Epihymenium hyaline, with greyish or brownish granules. Asci 8-spored; tholus absent; lateral walls initially thick, becoming thin. Ascospores transversely septate, oblong to ellipsoidal, rarely clavate, with ±rounded to narrowly rounded ends, hyaline, distinctly amyloid, 17–32 × 7–10 µm, with 6–10 locules; locules ±rounded to slightly angular, oblong to lentiform, with hemispherical end cells; septa moderately thin to thick, regular; ascospore wall thick, non-halonate; endospore thick. Pycnidia not seen.
CHEMISTRY: Thallus K+ yellowish, C–, P+ yellow; containing psoromic acid (major), 2’-O-demethylpsoromic acid (major to trace), subpsoromic acid (major to trace).
  Occurs in open, lowland to montane rainforest in northern N.T., eastern Qld and north-eastern N.S.W.; mainly pantropical.  
  Mangold et al. (2009)  

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

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