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
Peltula omphaliza (Nyl.) Wetmore
  Ann. Missouri Bot. Gard. 57: 194 ('1970') [1971]; Heppia omphaliza Nyl., Bull. Torrey Bot. Club 16: 106 (1889). T: San Pedro Martin Is., Gulf of California, Mexico, 1887, Palmer; holo: H-NYL 30893.  
  Thallus a single peltate orbicular squamule to 2 mm diam., convex, dull greenish olive, or brown to black, anchored by a central umbilicus; margin smooth, entire to slightly lobed. Upper cortex absent; epinecral layer yellowish. Medulla composed of loosely interwoven hyphae; photobiont layer 90–120 µm thick. Lower cortex 24–36 µm thick, comprising 3–5 layers of cells. Apothecia immersed, 5–20 per squamule; disc initially punctiform, later expanded, 0.1–0.2 mm diam., yellow to yellowish brown; hymenium wine-red or blue in iodine; epihymenium K– or K+ red to red-violet. Asci clavate to obclavate. Ascospores more than 100 per ascus, ellipsoidal to bacilliform, 5–7 × 3 µm. Pycnidia immersed, globose; conidia fusiform, 2.4–3.1 × 1.2 µm.
  Occurs in W.A., N.T., S.A. and Qld; grows on acidic and calcareous rocks in desert and arid microhabitats. Also in south-western U.S.A., southern Mexico and Cape Verde Is.  
  Büdel (2001)  

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