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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 borhidii (Farkas & Vezda) Lücking & Kalb
  Bot. Jahrb. Syst. 122: 47 (2000). Macentina borhidii Farkas & Vezda, Acta. Bot. Acad. Sci. Hung. 33: 296 (1987). T: Kihuhi Forest Reserve, East Usambara Mtns, Tanga Region, Tanzania, 3 Nov. 1986, E.E.Farkas 86228; holo: VBI; iso: GZU, UPS, A.Vezda, Lich. Sel. Exs. 2276.  
  Thallus continuous, effuse to determinate, very thin, pale grey-green to medium green, matt, ±smooth to minutely uneven, usually with numerous cream-coloured to pale green globose 30–50 µm diam. isidia; prothallus not apparent. Algae ±chlorococcoid; cells 4–6 (–7) µm diam. Perithecia hemispherical to subglobose, but only slightly attenuated at the base, 0.14–0.21 mm diam., slightly paler than the thallus; apex concolorous to medium orange-brown, frequently collapsing after maturity; ostiole inconspicuous; involucrellum absent. Excipulum 10–15 µm thick, hyaline. Centrum 0.1–0.15 mm diam. Periphyses 15–25 µm long. Asci broadly cylindrical or somewhat clavate, 45–55 × 10–12 µm. Ascospores 3-septate, oblong-ellipsoidal, cylindrical or fusiform, 14–23 × 3.5–5 µm; apices rounded to subacute, lacking a minute mucro; perispore not apparent. Pycnidia not seen.
  Occurs in north-eastern and south-eastern Qld and in north-eastern N.S.W.; grows on leaves of shrubs and trees in rainforest. A pantropical lichen.  

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

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