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
Pyxine keralensis D.D.Awasthi

Phytomorphology 40: 372 (‘1980’) [1982]

T: Pivavara Road railway station, Ernakulum, Kerala, India, on bark of tree, 28 Nov. 1973, K.P.Singh 73.352; holo: LWU n.v.

Pyxine isidiolenta R.W.Rogers, Austral. J. Bot. 34: 142 (1986). T: Little Ramsay Bay, Hinchinbrook I., Qld, on bark of Heritiera littoralis at sea level, 18 Aug. 1975, A.B.Cribb 1138; holo: MEL; iso: BM, BRI n.v.

  Thallus 2–8 cm wide, loosely adnate, subdichotomously lobate. Lobes radiating, discrete to ±imbricate, plane to slightly convex, 0.3–0.7 mm wide, subrotund to truncate at the apices. Upper surface pale yellowish white to yellowish grey or pale grey, epruinose; dactyls and soredia absent. Pseudocyphellae distinct, marginal and laminal, irregular and linear or becoming reticulate. Isidia laminal, cylindrical, simple or sparingly branched, ±clustered, 0.2–0.5 mm tall, 0.05–0.1 mm thick. Medulla pale yellow to yellow-orange. Lower surface brown-black in the centre, paler towards the margin; rhizines ±dense, short, simple or furcate. Apothecia rare, obscurascens-type, 0.5–1.4 mm wide; disc epruinose. Internal stipe distinct, yellow, K+ red, P–. Ascospores 12–18 × 6–7 μm. Pycnidia not seen.
CHEMISTRY: Cortex K+ yellow, C–, KC–, P+ yellow, UV–; medulla K–, C–, P–; containing atranorin (minor), chloroatranorin (minor), unknown terpenes (minor).
  Common on bark in coastal forests of the N.T. and eastern Qld. Also in South and East Asia.  
  Elix (2009l)  

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