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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
Pocsia septemseptata Vezda
  Folia Geobot. Phytotax. 17: 388 (1982). T: 40 km N of Kisangani, Haut-Zaire Province, Congo, 28 Oct. 1976, S.Lisowski; holo: Herb. A.Vezda.  
  Thallus crustose, foliicolous, continuous, effuse to determinate, very thin, pale grey to pale grey-green, matt, ±smooth to minutely uneven, epicuticular; prothallus not apparent. Algae usually in short filaments of 2–4 cells; cells 4–10 × 4–8 µm. Perithecia superficial, hemispherical to subglobose, but only slightly attenuated at the base, 0.14–0.26 mm diam., translucent even when dry, gelatinous when wet, pale yellow-green to pale orange, rarely medium orange-brown covered almost to the apex by a 20–30 µm thick layer of thallus; apex rounded not collapsing at maturity; ostiole inconspicuous. Involucrellum apical, indistinct, c. 20 µm thick. Excipulum 15–20 µm thick, hyaline. Centrum 0.1–0.19 mm wide. Paraphyses absent or sparse and simple in immature perithecia, absent at maturity. Periphyses simple to sparingly branched, 20–40 µm long. Asci 8-spored, clavate to cylindroclavate, 65–85 × 16–25 µm; apex with or without a broad and rather flat ocular chamber. Ascospores 7-septate, usually cylindrical and slightly curved, 32–51 × 6–9 µm; apices rounded, some with a minute mucro; perispore absent. Pycnidia not seen.
  Occurs in north-eastern Qld; grows on leaves in rainforest. A rare pantropical lichen.  
  McCarthy & Lücking (2001)  

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

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