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 fissa (Nyl.) Hale | ||
Mycotaxon 11: 136 (1980) Thelotrema fissum Nyl., Ann. Sci. Nat., Bot., sér. 4, 11: 258 (1859); — Rhabdodiscus fissus (Nyl.) Vain., Ann. Acad. Sci. Fenn., ser. A, 15(6): 184 (1921); — Leptotrema fissum (Nyl.) Zahlbr., Cat. Lich. Univ. 2: 634 (1923); — Stegobolus fissus (Nyl.) Frisch, in A.Frisch, K.Kalb & M.Grube, Biblioth. Lichenol. 92: 455 (2006). T: Réunion, Richard s.n.; lecto: H-NYL 22696, fide M.E.Hale, Smithsonian Contr. Bot. 16: 40 (1974). Thelotrema cubanum Tuck., Proc. Amer. Acad. Arts Sci. 5: 407 (1862); Rhabdodiscus cubanus (Tuck.) Vain., Ann. Acad. Sci. Fenn., ser. A, 15(6): 184 (1921); Leptotrema cubanum (Tuck.) Zahlbr., Cat. Lich. Univ. 2: 633 (1923). T: Cuba, C.Wright s.n.; lecto: FH-TUCK, fide A.Frisch, K.Kalb & M.Grube, Biblioth. Lichenol. 92: 455 (2006); isolecto: BM, US. Thelotrema epitrypum Nyl., Acta Soc. Sci. Fenn. 7: 454 (1863); Rhabdodiscus epitrypus (Nyl.) Vain., Ann. Acad. Sci. Fenn., ser. A, 15(6): 184 (1921); Leptotrema epitrypum (Nyl.) A.L.Sm., J. Linn. Soc. London, Bot. 46: 74 (1922); Ocellularia epitrypa (Nyl.) Hale, Mycotaxon 11: 136 (1980). T: Villeta, Nova Granata [Colombia], 1860, A.Lindig 2796; isolecto: H-NYL 3867, fide A.Frisch, K.Kalb & M.Grube, Biblioth. Lichenol. 92: 455 (2006). Trypethelium schizostomum Leight., Trans Linn. Soc. London 27: 184 (1869); Thelotrema schizostomum (Leight.) Müll.Arg., J. Linn. Soc. London, Bot. 30: 453 (1895); Thelotrema schizostomoides Zahlbr., Cat. Lich. Univ. 2: 628 (1923), nom. nov. pro Trypethelium schizostomum Leight. T: Central Province, Ceylon [Sri Lanka], G.H.K.Thwaites 121; lecto: BM, fide M.E.Hale, Bull. Brit. Mus. (Nat. Hist.), Bot. 8: 307 (1981). Leptotrema crassum Müll.Arg., Flora 65: 332 (1882); Ocellularia crassa (Müll.Arg.) Hale, Mycotaxon 11: 136 (1980). T: Java, [Indonesia], F.W.Junghuhn 158; isolecto: H, fide M.E.Hale, Bull. Brit. Mus. (Nat. Hist.), Bot. 8: 302 (1981). Thelotrema trypethelioides C.Knight, in F.M.Bailey, Proc. Roy. Soc. Queensland 1: 151 (1884); Phaeotrema trypethelioides (C.Knight) C.Knight, in J.Shirley, Proc. Roy. Soc. Queensland 6: 189 (1889). T: Qld, locality unknown, F.M.Bailey s.n.; lecto: BRI (AQ720154), fide A.Mangold, J.A.Elix & H.T.Lumbsch, Fl. Australia 57: 656 (2009). Leptotrema fallax Müll.Arg., Flora 70: 62 (1887). T: Richmond River, N.S.W., Miss Hodgkinson s.n.; iso: M. Thelotrema inalbescens Nyl., Lich. Japon. 57 (1890); Leptotrema inalbescens (Nyl.) Müll.Arg., Nuovo Giorn. Bot. Ital. 24: 199 (1892). T: Youmoto-Hakoné, Japan, E.Almquist s.n.; holo: H-NYL 22453 Thelotrema vesiculiferum Vain., Ann. Acad. Sci. Fenn., ser. A, 15(6): 175 (1921); Leptotrema vesiculiferum (Vain.) Zahlbr., Cat. Lich. Univ. 2: 641 (1923). T: Irosin, Luzon, Philippines, A.D.E.Elmer 14906; iso: US. |
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| Thallus endophloeodal to epiphloeodal, to c. 350 µm thick, pale greenish to pale yellowish grey or olive, dull to glossy, smooth to rough, continuous to verruculose, rimose or not. True cortex continuous or discontinuous, to c. 50 µm thick, formed by periclinal hyphae. Algal layer well developed, continuous, occasionally discontinuous due to crystal inclusions; calcium oxalate crystals abundant, large, scattered or clustered. Vegetative propagules not seen. Ascomata ±conspicuous, to c. 2 mm diam., ±rounded to irregular (especially fused ascomata), apothecioid, solitary to fused, moderately to distinctly emergent, hemispherical to urceolate or subglobose. Disc with the columella visible from above, distinctly pruinose, off-white to brownish or pale reddish, free to fused, entire to distinctly reticulate, especially in older ascomata. Pores formed by the thalline rim margin, to c. 1.8 mm diam., ±rounded to irregular, entire, rarely coarsely split, apex of the proper exciple becoming visible from above as a dark brown ring in gaping ascomata, rather thick, concolorous with the thallus to brighter or brownish; thalline rim incurved, rarely erect or slightly recurved. Proper exciple fused, brownish to carbonised, occasionally amyloid at the base. Hymenium to c. 100 (–120) µm thick, not inspersed, distinctly conglutinated; paraphyses straight to slightly bent, parallel to somewhat interwoven, unbranched, with slightly thickened tips; columellar structures variable, well developed, to c. 1.5 mm wide, replacing large parts of the hymenium, entire to more often distinctly complex, carbonised, covered by greyish or brownish granules. Epihymenium hyaline to brownish, with greyish or brownish granules. Asci 8-spored; tholus thick. Ascospores transversely septate to submuriform, oblong to ellipsoidal, rarely subglobose, with ±rounded to narrowly rounded ends, pale to brown at maturity, distinctly amyloid, 8–20 (–22) × 6–10 (–12) µm, with 3–6 × 1–3 locules; locules ±rounded to slightly angular, subglobose to oblong or ±irregular; transverse septa distinct, thick, regular to irregular; 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 (minor to trace), subpsoromic acid (trace). |
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| Common in northern N.T., eastern Qld and north-eastern N.S.W.; grows in monsoon forest, rainforest and wet-sclerophyll forest at altitudes to 1200 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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