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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
Strigula phaea (Ach.) R.C.Harris

in S.C.Tucker & R.C.Harris, Bryologist 83: 19 (1980)

Verrucaria phaea Ach., Syn. Meth. Lich. 88 (1814).

T: India Occ., [Antilles], ad corticem Cinchonae, coll. unknown; holo: H-ACH n.v.

Strigula minutula P.M.McCarthy, Muelleria 8: 327 (1995). T: between Paradise Falls and Little Falls, Bunya Mountains Natl Park, Qld, 5 Sept. 1993, P.M.McCarthy 759; holo: MEL (lost).

  Thallus thinly epiphloeodal or epilithic, continuous to sparingly rimose, pale green to dark grey-green, smooth, somewhat glossy, ecorticate; photobiont Trentepohlia; prothallus not apparent. Perithecia hemispherical, subglobose or subconical, 0.15–0.28 mm diam., partly or almost completely overgrown by a 10–30 µm thick thalline layer. Perithecial apex rounded; ostiole inconspicuous. Involucrellum brown-black, extending to exciple base level, 20–40 µm thick. Exciple medium to dark brown, 10–15 µm thick. Centrum 0.08–0.17 mm diam. Asci elongate-cylindrical, 45–65 × 6–8 µm. Ascospores elongate-ellipsoidal to elongate-fusiform, 1-septate, ±uniseriate in the ascus, 6–12 × 2.0–3.5 µm. Conidiomata black above, pale to dark brown below, 0.80–0.13 mm diam.; macroconidia 1-septate, elongate-ellipsoidal to cylindrical, 4.5–7.5 × 2.0–2.5 µm; microconidia not seen.
  Apparently rare, but probably overlooked, on bark and on deeply shaded siliceous rocks in eastern Qld and Tas.; also in the Neotropics, southern and western Europe, Macaronesia, China and New Zealand.  
  McCarthy (2009b)  

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

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