414 



TEXT-BOOK OF FUNGI 



resulted in the discovery, in other members of the Uredi- 

 neae, of the conjugation of cells after the manner described 

 by Blackman and Christman respectively, and the authors 

 consider that these two methods are simply variants of a 

 method of reduced fertilisation by spermatia. 



Blackman and Fraser, Ann. Bot.^ 20, p. 35 (1906). 



'On the Sexuality and Develop- 



ment of the Ascocarp in Humaria granulata] Proc. Roy. 

 Soc., ser. B., 77 (1906). 



