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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
     
  Trichothelium Müll.Arg. , Bot. Jahrb. Syst. 6: 418 (1885), from the Greek trichos (a hair) and thelion, diminutive of thele (a teat or nipple), in reference to the setose perithecia that characterise the genus. Type: T. epiphyllum Müll.Arg.  
     
  Thallus foliicolous, rarely corticolous or saxicolous (not in Australia). Algae Phycopeltis. Perithecia superficial on the thallus, not immersed in thallus-dominated verrucae. Involucrellum well-developed, usually contiguous with the exciple and extending to exciple base level, dark brown, green-black, purple-black or jet-black, rarely yellowish white (not in Australia) with one or more whorls of lax or stiff subapical setae composed of agglutinated hyphae; setae uniformly hyaline, whitish or black, or predominantly whitish but with a black base, or with a black basal half and a whitish apical half, or black apart from whitish tips. Ascospores 3–7-septate, or up to 21-septate or submuriform to muriform (not in Australia).
     
   
     
   
     
     
  McCarthy (2001b)  

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