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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
Trichothelium alboatrum Vain.
  Ann. Acad. Sci. Fenn., Ser. A, 15(6): 321 (1921). T: Philippines, Robinson; holo: TUR-VAINIO.  
  Thallus forming small round or irregular patches, greenish grey to medium green, smooth, matt; prothallus not apparent. Algae Phycopeltis; cells subglobose, angular-rounded or shortly rectangular, not forming radiating plates. Perithecia superficial, hemispherical to ±globose, 0.1–0.2 mm diam., black; setae 5–10 (–12), soft, usually decurved, narrowly acute or bristle-like, whitish or black with white distal halves or tips (not in Australia). Involucrellum purple-black or brown-black in thin section, contiguous with the exciple. Exciple c. 10 µm thick, brown-black. Asci narrowly obclavate, 70–90 × 8–11 µm. Ascospores fusiform to narrowly oblong, 7-septate, 25–35 × 4–6 µm; perispore not apparent. Pycnidia not seen. Trichothelium alboatrum
  An uncommon species collected from rainforest in eastern Qld and in south-eastern N.S.W. Mainly Palaeotropical and Pacific, its range includes northern New Zealand. Foliicolous.  
  McCarthy (2001b)  

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

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