Department of the Environment, Water, Heritage and the Arts logo

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
     
     
Trichothelium assurgens (Cooke) Aptroot & Lücking
     
  Mycol. Res. 105: 511 (2001). Trichothelium nanum Malcolm & Vězda, Folia Geobot. Phytotax. 30: 95 (1995). T: York Valley, Nelson, South Island, New Zealand, 16 Nov. 1993, W.Malcolm 1569; holo: CHR; iso: Herb. A. Vězda.  
     
  Thallus forming small round or irregular patches, these frequently confluent, pale greenish grey to medium green, occasionally pale grey (and moribund?), smooth, matt to slightly glossy; prothallus not apparent. Algae Phycopeltis; cells subglobose, angular-rounded or shortly rectangular, not forming radiating plates. Perithecia superficial, hemispherical to subglobose, 0.08–0.16 (–0.2) mm diam., black; setae (2–) 4–6 (–8), usually narrowly acute (occasionally hair-like), decurved and usually soft, occasionally irregularly sinuous, usually remaining discrete, usually whitish, sometimes basally black, or with the proximal half to two-thirds black. Involucrellum greenish black to brown-black in thin section, contiguous with the exciple. Exciple c. 10 µm thick, greenish black to brown-black. Asci elongate-cylindrical to narrowly obclavate, 55–85 × 8–10 µm. Ascospores oblong to fusiform or bacilliform, 3-septate, 15–20 (–25) × 3–4 (–5) µm; perispore not apparent. Pycnidia not seen. Trichothelium assurgens map
     
  A very inconspicuous but probably common species, known from north-eastern Qld, south-eastern N.S.W., Vic. and Tas. Also in Micronesia, Melanesia, Polynesia and New Zealand. Foliicolous.  
     
   
     
     
  McCarthy (2001b)  

Checklist Index
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References
 
 
Copyright

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