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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
Letrouitia corallina (Müll.Arg.) Hafellner

Nova Hedwigia 35: 669 (1983)

Heterothecium vulpinum f. corallinum Müll.Arg., Nuovo Giorn. Bot. Ital. 23: 393 (1891); Lopadium vulpinum f. corallinum (Müll.Arg.) Zahlbr., Cat. Lich. Univ. 4: 316 (1927).

T: Qld, locality unknown, F.M.Bailey 742; holo: G (lost); Mount Mee State Forest, W of Caboolture, N of Dayboro, Qld, 8 Oct. 1981, H.Mayrhofer; neo: GZU, fide J.Hafellner, loc. cit.

  Thallus olive-greenish to pale orange, thin, isidiate; soredia absent. Isidia pale orange, usually somewhat flattened and procumbent, fragile, usually unbranched, scattered. Apothecia very rare, sessile, constricted at the base, 1–2 mm wide; disc brown, concave, plane or convex; margin prominent, yellow-orange to orange, elevated above the disc, becoming partially excluded in older apothecia; disc and margin K+ purple; proper exciple of radiating hyaline agglutinated hyphae, the outer layer encrusted with anthraquinone crystals, colourless internally near the apothecial base. Epihymenium encrusted with anthraquinone crystals or the crystals eroded. Hymenium not inspersed, colourless, 80–100 μm thick; hypothecium pale brown. Asci 2-spored, or with 1 enlarged ascospore, 70–90 × 16–22 μm. Ascospores ellipsoidal, transversely septate and submuriform, with 8–12 primary lens-shaped locules, each with 1–4 vertical septa, 36–42 × 15–20 μm in 2-spored asci, 45–58 × 16–22 μm in 1-spored asci. Conidia not seen.
CHEMISTRY: Thallus and apothecia K+ purple; both containing fragilin (major), parietin (minor), ±emodin (trace), ±5-chloroemodin (trace), ±7-chloroemodin (trace), ±7-chloro-parietinic acid (trace), ±7-chlorofallacinal (trace), ±fragilin bisanthrone (trace), ±physcoin bisanthrone (trace).
  Rather common in eastern Qld; on bark in subtropical and tropical forest. Also in SE Asia, Indonesia and Papua New Guinea.  
  Elix (2009k)  

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

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