Department of the Environment and Water Resources home page

About us | Contact us | Publications | What's new

Header imagesHeader imagesHeader images

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 viridiseda (Nyl.) R.C.Harris
  Bryologist 83: 18 (1980). T: French Guyana, Melinon; holo: H-NYL 719, n.v.  
  Thallus crustose, endophloeodal, greenish white. Algae Trentepohlia. Prothallus not apparent. Perithecia numerous, usually solitary, 2/3 immersed to semi-immersed to almost superficial (when post-mature), convex, hemispherical, somewhat conical or subglobose, (0.24–) 0.41 (–0.55) mm diam.; surface soon becoming coarsely uneven. Perithecial apex rounded to somewhat pointed; ostiole usually inconspicuous or in a shallow depression. Involucrellum extending to excipulum-base level or incurved beneath the excipulum, 60–110 µm thick, jet-black, becoming rather brittle. Excipulum pale to medium brown near the apex, hyaline to pale brown at the base, c. 15 µm thick. Centrum depressed-ovate, 0.18–0.3 mm wide. Paraphyses simple to sparingly branched, c. 1 µm thick. Periphyses absent. Asci elongate-cylindrical, 95–120 × 5–7 µm; apex rounded, with a minute, convex to tuberculate ocular chamber. Ascospores 8 per ascus, hyaline, fusiform, elongate-fusiform or somewhat clavate, 1-septate, uniseriate but overlapping, (12–) 16 (–20) × (3–) 4 (–5) µm. Conidiomata numerous, semi-immersed to almost superficial, 0.1–0.18 mm diam., black above, hyaline below. Conidia not seen.
  Collected from a tree-trunk in dense, primary forest in Christmas Is. Also known from the Caribbean region (southern U.S.A., West Indies and north-eastern South America), and coastal areas of Papua New Guinea.  
  McCarthy (2001i)  

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

This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from Australian Biological Resources Study. Requests and inquiries concerning reproduction and rights should be addressed in the first instance to Dr P. McCarthy. These pages may not be displayed on, or downloaded to, any other server without the express permission of ABRS.

Top | About us | Advanced search | Contact us | Information services | Publications | Site index | What's new