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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 maculata (Cooke & Massee) R.Sant.

Symb. Bot. Upsal. 12(1): 186 (1952)

Micropeltis maculata Cooke & Massee, in M.C.Cooke, Grevillea 18: 35 (1889).

T: Rio de Janeiro, Brazil, 1889, A.Glaziou 18093; lecto: BM n.v., fide R.Santesson (loc. cit.).

  Thallus epiphyllous, subcuticular, irregular, 5–15 (–20) mm wide, 8–15 µm thick, lobate, the lobes closely confluent, dark grey-green, ±smooth, dull to slightly glossy, bordered by a thin black line; spaces between lobes minute; photobiont Cephaleuros; prothallus not apparent. Perithecia superficial, prominent, ±conical, covered to the apex by a layer of thallus, 0.25–0.5 mm diam., greyish black to green-black. Perithecial apex subacute. Involucrellum black, carbonaceous, extending to exciple base level, 20–30 µm thick. Exciple hyaline to brown, 10–15 µm thick. Centrum 0.15–0.30 mm diam. Paraphyses simple. Asci narrowly obclavate, 45–65 × 6–8 µm. Ascospores 1-septate, oblong-cylindrical, biseriate in the ascus, slightly constricted at the septum, 11–18 × 2.0–3.5 µm; cells not separating. Conidiomata: 1) semi-immersed to superficial, hemispherical to verrucose, black, 0.1–0.2 mm diam., containing simple bacilliform macroconidia 4–6 × 1–2 µm; 2) similar, but 0.07–0.15 mm diam., containing simple fusiform microconidia 4–5 × 1.0–1.5 µm.
  Common on the leaves of rainforest trees and shrubs in eastern Qld and north-eastern N.S.W.; also on Lord Howe Island. Pantropical and subtropical.  

Photo: R. Lücking (S. maculata on the right)

  McCarthy (2009b)  

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

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