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
Menegazzia enteroxantha (Müll. Arg.) R.Sant.
  Ark. Bot. 30A(11): 12 (1942)
Parmelia enteroxantha Müll. Arg., Bull. Herb. Boissier 4: 90 (1896). T: Bellinger R., N.S.W., J.H.Maiden; holo: G 003915.
  Thallus appressed, forming rosettes to 10 cm wide. Lobes ±radiating, short, inflated, to 4 mm wide, branching subdichotomous, contiguous to margins or rarely discrete, in part imbricate especially towards centre; secondary lobes rare, unorientated, often imbricate. Upper surface often rugose, pale green-grey, not blackened. Cavity vivid chrome yellow above and below, covered with minute yellow crystals, not dissolving in K. Perforations rather few to almost absent, laminal, rounded or elongate, gaping, to 2 mm wide, flat with depressed margin or elevated with a distinct collar. Apothecia few, scattered, 3–6 mm wide, sessile to subpedicellate; disc concave to flat, red-brown, internally chrome-yellow; exciple persistent, often radially lacerate, flexuose below, rumpled-faveolate. Ascospores 2 per ascus, 40–58 × 32–37 µm; wall 4–4.5 µm thick. Pycnidia sparse, often clustered; ostiole blackened. Conidia 5–6 × 0.5 µm. CHEMISTRY: cortex K+ yellow (atranorin); medulla K+ pink-orange, KC-, C-, P+ yellow-orange (thamnolic acid, ±stictic acid, ?calycin, ±UV+ orange pigment).
  Occurs in N.S.W. on canopy twigs of Nothofagus moorei in rainforest, thallus sometimes irregular through fragmentation or encircling small twigs; endemic.  
  James & Galloway (1992)  

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