HEMIASCOMYCETES 



263 



opening in the form of a long tendril consisting of the 

 spores held together by mucus, much the same as in species 

 of Phoma, etc. 



Several such asci are formed from the tip of the same 



FlG. 63. Basidiobolus ranarum, nuclei in beaks be- 

 coming disorganised : the male nucleus has passed into 

 the enlarged female gamete, and has approached the 

 female nucleus (after Fairchild). 2-3, Dipodascus 

 albidus ; 2, showing the mature ascus containing nume- 

 rous spores (after Lagerheim) ; 3, young ascus of D. 

 albidus, showing the one large nucleus which by division 

 forms the nuclei of the spores (after Juel). All highly 

 mag. 



branchlet in succession, the empty asci persisting and 

 forming a series of sheaths enclosing the central last-formed 

 ascus. This condition of things prevails in connection 

 with the development of the zoosporangia of certain species 

 of Saprolegnia. 



