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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 interjecta Müll.Arg.
  Nuovo Giorn. Bot. Ital. 23: 390 (1891). T: Toowoomba, Qld, 1887, F.M.Bailey; holo: G.  
  Thallus verrucose to verruculose, yellowish grey to greenish grey, epruinose. Soredia absent. Prothallus not visible. Apothecia sessile, 0.3–0.7 mm diam.; disc dark orange-brown to red-brown, epruinose or slightly grey-pruinose; margin concolorous with the thallus, thin, verruculose. Cortex hyaline, inspersed with small crystals, 10–30 µm thick laterally and basally. Amphithecium with large crystals insoluble in KOH (pulicaris-type). Parathecium hyaline, 15 µm thick, with numerous small crystals insoluble in KOH. Epihymenium reddish brown, c. 10–15 µm thick, with numerous small crystals (pulicaris-type); pigmentation and crystals soluble in KOH. Hymenium, subhymenium and hypothecium hyaline. Paraphyses sparingly branched and thickened apically. Ascospores ellipsoidal, 10.5–14.5 × 7.5–10.0 µm. CHEMISTRY: Thallus and apothecial margin K+ yellow, C+ orange, Pd+ pale orange; containing arthothelin (major), usnic acid (major), atranorin (minor), chloroatranorin (minor), 2,5-dichloronorlichexanthone (minor) and 4,5-dichloronorlichexanthone (minor).
  A corticolous species on various trees including Acacia, Alphitonia, Ficus and Rhizophora in rainforest and mangroves. It is known from N.T., Qld and N.S.W. and the North Island of New Zealand.  
  Lumbsch & Elix (2004)  

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

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