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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
Degelia periptera (C.Knight) P.M.Jørg. & P.James
  Biblioth. Lichenol. 38: 274 (1990)
Pannaria periptera C.Knight, Trans. & Proc. New Zealand Inst. 7: 361 (1875). T: locality unknown, probably near Auckland, N.Z., 1867, C.Knight; lecto: H-NYL 30378, fide D.J.Galloway, Fl. New Zealand Lichens 334 (1985).
  Thallus squamulose, ±crustose centrally, ±rosette-forming, 4–5 cm wide, closely appressed to substratum on thick mat of blue-black rhizohyphae. Lobes 0.1–0.2 cm wide, incised to centre, stellately radiating, apically ±fan-shaped, running parallel and adjacent. Upper surface faintly striate, often with ±granular secondary lobules, leaden grey. Lower surface ecorticate, pale buff, densely covered in blue-black rhizohyphae. Apothecia sessile, laminal, rounded, 0.2–1 mm wide; disc ±flat with paler proper exciple and irregular secondary squamulose thalline exciple, red-brown; hymenium I+ blue. Ascospores simple, ellipsoidal, 15 × 5–8 µm, hyaline.
  Known in Australia only from one collection in a forest at 500 m in N.S.W., on bark; also in coastal areas in northern North Is., New Zealand.  
  Jørgensen & Galloway (1992a)  

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

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