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
Leptogium marginellum (Sw.) S.F.Gray
  Nat. Arr. Brit. Pl. 1: 401 (1821)
Lichen marginellus Sw., Prodr. 147 (1788). T: Jamaica, O.P.Swartz; n.v.
  Thallus foliose, closely or loosely adnate, irregular or subradiate, 2–8 cm wide, 50–220 µm thick, leaden grey or browned. Lobes orbicular, 1.5–7 mm wide, ±flat; margins often ascending, undulate, entire or slightly erose; surfaces ±strongly wrinkled; usually not isidiate. Lower surface naked or with small rhizines. Apothecia usually marginal, common but often aborted, sessile to adnate, 0.1–1 mm wide; thalline exciple concolorous with thallus or pale cream ±densely isidiate, with ±clavate to squamuliform isidia; disc concave to flat, pale brown to reddish brown. Ascospores ellipsoidal, ±muriform, 15–26 × 9–12 µm; apices acute. Pycnidia not seen.
  Distributed from north-eastern Qld to Richmond R. in N.S.W., growing on bark. Common in tropical and subtropical America and recorded from the Philippines.  
  Verdon (1992b)  

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