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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 malmei P.M.McCarthy
  Biblioth. Lichenol. 52: 70 (1993). T: near Santa Maria, Silveira Martins, Rio Grande do Sul, Brazil, 13 Mar. 1893, G.O.A.Malme s.n.; holo: S.  
  Thallus epilithic, continuous to faintly and sparingly rimose, medium brownish grey, matt, smooth, 20–50 µm thick, ecorticate; prothallus not apparent. Algae Trentepohlia; cells 6–16 × 6–12 µm. Perithecia one-third immersed to superficial, hemispherical to subglobose, (0.17–) 0.22 (–0.28) mm diam., dull black; apex rounded; ostiole inconspicuous. Involucrellum contiguous with the exciple, extending to exciple base level or incurved beneath, 20–35 µm thick, not enclosing algae, K–. Exciple 15–20 µm thick, brown-black. Centrum 0.15–0.24 mm wide. Asci elongate-cylindrical to narrowly obclavate, 95–115 × 12–15 µm. Ascospores broadly fusiform to elongate-fusiform, 7 (or 8)-septate, 18–30 × 4.5–6.5 µm; perispore not apparent. Pycnidia not seen.
  Occurs in south-eastern Qld; grows on semi-aquatic siliceous rocks. Also in southern Brazil.  
  McCarthy (2001b)  

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

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