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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 farinosa C.Knight
  in F.M.Bailey, Syn. Queensland Fl., Suppl. 1: 74 (1886); Clathroporina farinosa (C.Knight) Zahlbr., Cat. Lich. Univ. 1: 417 (1922); C. tomentella Müll.Arg., Flora 70: 428 (1887), nom. illeg. T: Toowoomba, Qld, C.H.Hartmann; holo: WELT; iso: BRI, G, WELT.  
  Thallus epiphloeodal, pale yellowish green, grey-green or pale grey-brown, 40–150 µm thick, continuous to rimose, smooth, minutely rugulose, verruculose or coarsely verrucose, corticate; prothallus pale grey, dark grey-brown or not apparent. Algae Trentepohlia; cells 5–12 × 5–9 µm. Perithecial verrucae convex, hemispherical or subglobose, 0.5–1 mm diam.; wall containing a layer of colourless crystals; apex slightly concave, plane or rounded; ostiole inconspicuous; periostiolar area concolorous with the thallus or pinkish brown. Involucrellum pale yellowish brown to orange-brown, forming a ±globose shell that often encloses the exciple. Exciple 20–30 µm thick, hyaline to pale brown. Centrum 0.35–0.67 mm wide. Periphyses 20–40 µm long. Asci broadly fusiform to oblong, 210–410 × 35–65 µm. Ascospores narrowly to broadly ellipsoidal or fusiform, muriform, with 17–30 transverse septa, each loculus with (1–) 2–4 (–6) longitudinal or diagonal septa, 58–148 × 18–41 µm; perispore 1–4 (–5) µm thick. Pycnidia immersed in 0.1–0.2 mm diam. verrucae. Conidia fusiform, 2–4 × c. 1 µm.
  A rather common epiphyte in subtropical and tropical forest in eastern Qld and N.S.W. Also in the Caribbean, South America, East Africa, New Guinea, southern Japan, New Caledonia and Polynesia.  
  McCarthy (2001b)  

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

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