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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 constrictospora P.M.McCarthy & Kantvilas
  Lichenologist 25: 138 (1993). T: The Thumbs, Tas., 42°39'S, 146°19'E, 3 Feb. 1973, G.C.Bratt 73/39 & K.M.Mackay; holo: AD 20710 (part).  
  Thallus epilithic or epiphloeodal, continuous to rimose, medium to dark green to greenish black, matt, smooth, 25–40 µm thick, ecorticate; prothallus not apparent. Algae Trentepohlia; cells 9–18 × 8–15 µm. Perithecia superficial, subglobose or bilaterally flattened, 0.32–0.56 mm diam., black; apex usually rounded; ostiole inconspicuous or in a 30–50 µm wide papilla. Involucrellum contiguous with or arching away from the exciple, sometimes incurved beneath, 50–70 µm thick, K+ reddish brown. Exciple 25–40 µm thick, dark brown. Centrum 0.2–0.26 mm wide. Asci elongate-cylindrical, 80–115 × 7–12 µm. Ascospores elongate, usually with a medial constriction, entwined in the asci, 7-septate, 40–59 × 2–3.5 µm; perispore usually not apparent. Pycnidia semi-immersed, 70–100 µm diam., black. Conidia bacilliform to ±filiform, 3–5 × 0.7 µm.
  Occurs in south-eastern N.S.W. and in Tas.; grows on coastal sandstone (in N.S.W.), alpine quartzite and on twigs and branches in rainforest. Also in New Zealand.  
  McCarthy (2001b)  

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

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