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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
Maronina australiensis Hafellner & R.W.Rogers
  Biblioth. Lichenol. 38: 102 (1990). T: Tandora, c. 25 km ENE of Maryborough, 25°27’S, 152°52’E, 23 Aug. 1986, J.Hafellner 17823 & R.W.Rogers; holo: GZU, n.v.; iso: BM, CANB, M, MEL, UPS, US, Herb. J.Hafellner, Herb. K.Kalb [only CANB seen].  
  Thallus effuse to determinate, richly rimose to areolate, verruculose, pale brownish grey, dull to somewhat glossy; prothallus not apparent. Photobiont cells 7–14 µm diam. Apothecia ±round, sessile and becoming constricted at the base, 0.5–1.5 (–2.0) mm diam.; disc plane to slightly convex, smooth, medium to dark reddish brown; margin thick, persistent, corticate, crenulate, concolorous with the thallus. Excipulum 20–35 µm thick. Hymenium 40–55 µm thick, hyaline to very pale brown. Hypothecium to 60 µm thick. Paraphyses 2–3 µm thick; wall of apical cell, but not contents, medium brown. Asci broadly clavate, 30–45 × 13–18 µm. Ascospores 16–32 per ascus, 9–12 (–14) × 2.0–3.0 (–3.5) µm. Conidia 7–10 × 1.0–1.5 µm. CHEMISTRY: Medulla K+ brownish; containing an unidentified substance related to caperatic acid (see J.Hafellner & R.W.Rogers, op. cit. 103, fig. 3).
  Endemic to south-eastern Qld; corticolous in mangroves.  
  McCarthy (2004)  

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

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