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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
Lecanora subimmersa (Fée) Vain. subsp. subimmersa
  Étude Lich. Brésil 1: 98 (1890); Lecidea subimmersa Fée, Bull. Soc. Bot. France 20: 315 (1873). T: Rio de Janeiro, Brazil, 1869, A.Glaziou 3294; iso: M. ****Lecanora laevissima C.Knight, in J.Shirley, Proc. Roy. Soc. Queensland 6: 133 (1889). T: Mt Perry, Qld, J.Keys 686 & J.S.Helidon; holo: BRI. ****Lecidea leioplaca Müll.Arg., Flora 70: 61 (1887). T: Rockhampton, Qld, A.Thozet; holo: G; iso: M. ****Lecidea wilsonii Räsänen, Arch. Soc. Zool.-Bot. Fenn. Vanamo” 3: 183 (1948). T: Kuranda, “Cavins” [Cairns], Qld, 1893, F.R.M.Wilson; holo: H.  
  Thallus thin, plane, continuous to rimose-areolate, yellowish white to whitish grey, epruinose, sometimes glossy. Soredia absent. Prothallus not visible or whitish grey. Apothecia immersed in the thallus, 0.2–0.5 mm diam.; disc pale to dark red-brown, epruinose or slightly bluish-pruinose. Cortex absent. Amphithecium reduced to a thin layer, with numerous small crystals soluble in KOH. Parathecium 15–20 µm thick, hyaline, inspersed with small crystals. Epihymenium reddish brown, c. 10–15 µm thick, K–, without crystals (glabrata-type). Hymenium, subhymenium and hypothecium hyaline. Paraphyses sparingly branched and thickened apically. Ascospores ellipsoidal, 8.5–14.5 × 4.5–5.5 µm. CHEMISTRY: Thallus K+ yellow, C–, Pd+ pale orange; containing atranorin (major), zeorin (major), chloroatranorin (minor) and unidentified terpenes (trace).
  A saxicolous species on sandstone or quartzitic rocks in shaded habitats in rainforest, gallery forest and open woodland in northern Australia. Occurs in north-western W.A., northern N.T. and north-eastern Qld. A pantropical subspecies.  
  Lumbsch & Elix (2004)  

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

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