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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
Parmeliella nigrata (Müll. Arg.) P.M.Jørg. & D.J.Galloway
  Fl. Australia 54: 317 (1992)
Pannaria nigrata Müll. Arg., Bull. Herb. Boissier 4: 91 (1896). T: near Warnambool, Vic., F.R.M.Wilson 130; lecto: G, fide P.M.Jørgensen & D.J.Galloway, Fl. Australia 54: 317 (1992).
  Thallus small-foliose to squamulose, neat rosettes to ±straggling-irregular, 0.5–3 cm wide, on a thin to thick occasionally cottony prothallus projecting to 4 mm beyond squamules. Squamules 1–3 mm wide, irregularly laciniate to stellate or cochleate; margins slightly thickened to lobulate-isidiate. Upper surface smooth to slightly furrowed or fissured in parts, somewhat leathery to minutely crystalline-scabrid in parts, isidiate, pale to dark leaden grey-blue; isidia simple, finger-like at first, soon becoming ±coralloid, 0.2–0.5 mm tall, 0.1 mm wide, swollen at apices, marginal and laminal, often forming a central diffract crust obscuring thallus and apothecia, concolorous with thallus or paler. Apothecia rounded to contorted, occasional to frequent, 0.3–1.2 mm wide, often ±immersed in isidiate crust; disc concave, becoming flat to subconvex, pale to dark red-brown; proper exciple prominent, slightly raised, entire, concolorous with disc or paler. Ascospores, 10–15 × 7–8 µm.
  Occurs on moss or more rarely on bark. A species of lowland rainforest, along stream margins. Known from a few localities in N.S.W. and Vic. Also in New Zealand.  
  Jørgensen & Galloway (1992a)  

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

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