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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
Porina limitata C.Knight
  in F.M.Bailey, Syn. Queensland Fl., Suppl. 1: 73 (1886). T: Toowoomba, Qld, C.Knight 179; holo: WELT; iso: G.  
  Thallus epiphloeodal or epiphyllous, continuous to rimose, pale sandy brown to pale greyish green, matt to slightly glossy, minutely verruculose, 40–80 µm thick, corticate; prothallus broad, greyish black. Algae Trentepohlia; cells 6–12 × 6–10 µm. Perithecial verrucae convex to hemispherical, 0.38–0.68 mm diam.; wall containing a layer of colourless crystals; apex rounded to ±plane; ostiole inconspicuous or in a shallow depression; periostiolar area concolorous with the thallus or pale to medium brown and 80–140 µm diam. Involucrellum apical to dimidiate, pale to medium orange-brown. Exciple 20–25 µm thick, hyaline to pale brown. Centrum 0.2–0.35 mm wide. Asci elongate-cylindrical, 100–130 × 20–25 µm. Ascospores fusiform, 7–9-septate, 38–58 × 6–10 µm; perispore 1–2 µm thick. Pycnidia not seen.
  Occurs on bark in south-eastern Qld, and grows from twigs onto leaves in north-eastern Qld. Also known from Vanuatu.  
  McCarthy (2001b)  

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

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