1. 
   homothallism
   (from the article `fungus`) ...(or and ). Gametes produced by one type of thallus are compatible only with gametes produced by the other type. Such fungi are said to be ...
   Found op http://www.britannica.com/eb/a-z/h/66
   
   
2. 
   homothallism
   homothallism, homothallous, homothallic A mode of reproduction in fungi and algae in which each thallus produces both male and female sex cells and is self-fertilizing.
   Found op http://www.wordinfo.info/words/index/info/view_unit/2129/
   
   

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