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
Diploschistes euganeus (A.Massal.) J.Steiner

Verh. Zool.-Bot. Ges. Wien 169: 96 (1919)

Limboria euganea A.Massal., Ric. Auton. Lich. Crost. 155 (1852); — Urceolaria euganea (A.Massal.) Jatta, Syll. Lich. Ital. 289 (1900).

T: “ad saxa trachytica in Eiganeis”, [Italy], A.Massalongo, Lich. Ital. Exs. 79; lecto: L, fide H.T.Lumbsch, J. Hattori Bot. Lab. 66: 169 (1989); isolecto: BM, M, UPS, WELT.

  Thallus endolithic to epilithic, to c. 0.9 mm thick, grey to greyish brown, dull to slightly glossy, smooth, continuous to rimose-areolate, epruinose. Epinecral layer to c. 20 µm thick. Algal layer continuous, well developed; calcium oxalate crystals sparse, scattered, small to large. Vegetative propagules not seen. Ascomata conspicuous, blackish, to c. 1.8 mm diam., ±rounded, perithecioid, solitary, immersed. Disc not visible from above. Pores minute, to c. 0.1 mm diam., ±rounded; inner and apical proper exciple visible from above, free, black, epruinose. Thalline rim margin thin, ±rounded, concolorous with and having the same surface features as the thallus, immersed. Proper exciple free, thick, blackish brown, non-amyloid. Hymenium 100–140 µm thick, not inspersed, moderately conglutinated; lateral paraphyses conspicuous, to c. 30 µm long. Epihymenium hyaline to pale brown, egranulose. Asci (6–) 8-spored. Ascospores broadly ellipsoidal, with ±rounded ends, hyaline to brown, non-amyloid, 16–32 × 10–20 µm, with 3–6 × 1–4 locules; locules ±rounded to angular; septa thick, regular; ascospore wall thin to thick; endospore thick. Pycnidia not seen.
CHEMISTRY: Thallus K–, C– red, P–; no secondary metabolites detected by TLC.
  Occurs on exposed, siliceous rocks in semi-arid and arid regions of southern Australia (W.A., S.A., N.S.W. and Vic.); subcosmopolitan.  
  Mangold et al. (2009)  

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