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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 nuculastrum (Müll.Arg.) R.C.Harris
  More Florida Lich. 174 (1995); Clathroporina nuculastrum Müll.Arg., Flora 67: 618 (1884); Verrucaria nuculastrum (Müll.Arg.) Stizenb., Ber. Thätigk. St. Gallisch. Naturw. Gesellsch. 1889–1890: 210 (1891). T: Nosy Bé Is. ('Nossi-bé'), Madagascar, [1879], J.M.Hildebrandt; holo: G; iso: FH.  
  Thallus epiphloeodal or epilithic (not in Australia), sparingly to richly rimose, pale grey, pale grey-green or pale grey-brown, minutely to coarsely rugulose and/or verruculose, 40–120 µm thick, corticate; prothallus dark grey-brown to black or not apparent. Algae Trentepohlia; cells 6–15 × 6–11 µm. Perithecial verrucae convex to subglobose, 0.44–92 mm diam.; wall containing a layer of colourless crystals; ostiole inconspicuous or in a shallow depression; periostiolar area grey-brown to dark brown, 0.08–0.22 mm diam. Involucrellum dimidiate or enclosing the exciple, orange-brown to brown. Exciple c. 20 µm thick, pale brown to yellowish brown. Centrum 0.3–0.54 mm wide. Periphyses 10–20 (–30) µm long. Asci elongate-fusiform, 180–250 × 30–50 µm. Ascospores narrowly ellipsoidal to fusiform, submuriform to muriform, with 9–12 transverse septa, each loculus with (0–) 1 (–2) longitudinal or diagonal septa, 49–95 × 13–24 µm; perispore 2–3 µm thick, evanescent. Pycnidia not seen.
  Occurs in northern N.T. on bark in rainforest. Rather common in the Neotropics; also in Madagascar, the Philippines and China (Hong Kong).  
  McCarthy (2001b)  

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

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