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
Xanthoparmelia nigrocephala Kurok.
  Ann. Tsukuba Bot. Gard. 8: 24 (1989). T: Mt Kosciusko, Charlottes Pass, N.S.W., Australia, elev. c. 1985 m, 3 Dec. 1965, S.Kurokawa 6480; holo: TNS.  
  Thallus foliose, adnate to tightly adnate, to 5–10 cm wide. Lobes imbricate, flat, irregular, elongate, irregularly branched, 1–2.5 (–5) mm wide; margins slightly thickened; apices rounded or shallowly notched. Upper surface yellow-green, blackening on older lobes, shiny, emaculate, smooth at margins, becoming rugose in thallus centre, without soredia; lobe margins blackened; isidia dense, in centre of thallus, subglobose, constricted near base, slender or slightly inflated, becoming coralloid, short, usually black-tipped on terminal branchlets; isidia apices syncorticate and intact. Medulla white. Lower surface shiny, pale tan to brown, rarely dark brown in places; rhizines sparse to moderately dense, simple, short, concolorous. Apothecia sessile, 2–5 mm wide; disc concave, shiny, black-brown to dark brown; thalline exciple smooth, entire, undulating, shiny, densely isidiate. Ascospores 6–8 × 4.5–5 µm. Pycnidia rare. Conidia bifusiform, 6–7 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K+ yellow then dark red, C-, KC-, P+ orange; containing usnic acid, salazinic acid and consalazinic acid.
  An alpine species known from N.S.W., A.C.T., Vic. and Tas. Grows on rock.  
  Elix (1994z)  

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