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
Verrucaria prominula Nyl.
  Bull. Soc. Bot. France 8: 758 (1861). T: Pornic, France, 1861; holo: H-NYL n.v.  
  Thallus subepilithic to epilithic, diffuse to determinate (mainly around perithecia), continuous to rimose, pale pinkish grey, smooth to uneven, matt, 40–80 µm thick, heavily impregnated with minute rock fragments and crystals, ecorticate. Algae 6–12 µm diam. Prothallus and basal layer not apparent. Perithecia semi-immersed to almost superficial, solitary, paired or in groups of 3, hemispherical, subglobose or subconical, (0.4–) 0.55 (–0.72) mm diam., black; apex rounded to deeply excavate. Involucrellum extending to the base of the exciple or completely enclosing it, smooth or slightly to grossly uneven, not overgrown by the thallus, brown-black to black in thin section, 50–100 µm thick near the apex, 100–200 µm thick at the base. Exciple 20–30 µm thick, brown-black. Centrum 0.22–0.35 mm wide. Periphyses 30–60 × c. 2 µm. Asci c. 45–65 × 18–25 µm. Ascospores usually broadly ellipsoidal,
11–20 × 7–10.5 µm.
  Known from one locality in southern Tas. where it grows on soft friable shale above a rocky seashore. Also in France, Germany, Scandinavia, the British Isles and eastern and western North America.  
  McCarthy (2001h)  

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