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
Collema subconveniens Nyl.
  Lich. Nov. Zel. 8 (1888)
T: N.Z., C.Knight; lecto: BM, fide G.Degelius, Symb. Bot. Upsal. 20(2): 135 (1974). ****Leptogium olivaceum F.Wilson, J. Linn. Soc., Bot. 28: 356 (1891). T: Traawool and Beaconsfield, Vic., F.R.M.Wilson 13; lecto: BM, fide G.Degelius, loc. cit.
  Thallus to 8 cm wide, foliose, membranous, adnate or partly ascending, smooth or sparsely ridged; isidia rare, squamiform. Lobes to 8 mm wide, imbricate, often undulate, flat, matt or slightly glossy, light grey-green to light olive-green becoming brown when dry. Apothecia often dense, to 1.5 mm wide, laminal, sessile with constricted base; disc flat, becoming convex, matt, sometimes glossy, epruinose, pale red to dark red to brown; thalline exciple thin, entire, disappearing. Asci 52–110 × 15–24 µm. Ascospores 20–40 × 8–10.5 µm, fusiform to ellipsoidal, straight with acute ends, muriform, 3–5 transverse septa, 1–3 longitudinal septa, sometimes strongly constricted. Pycnidia dense, to 200 µm wide, laminal; pycnidial gel pale yellow. Conidia 4–5 × 1–1.5 µm, straight, slightly swollen towards ends.
  Occurs on bark of trees and shrubs in W.A., N.S.W., Vic. and Tas.; also in Japan, South America, Australia, New Zealand and Subantarctic islands.  
  Filson (1992d)  

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