750 THE AMERICAN NATURALIST. [Vol. XXXVU I. 



granular protoplasm eliminates them as structures immediately 

 concerned with the form of a cell or or-an thus limiting their 

 functions more especially to metabolism. 



6. The Coenogamete. 



ite is a multinucleate sexual cell. The name 

 I hy the author (l),i\ is. : oo, p. 307) to the 

 ruu-lcate eggs ol" /V///, and the concep- 



;i(lcr:il)1y extended since, as ex])lained in his later 

 "legiiia (l)a\is. 103, p. 320-33 i) and on "The 

 ;exual organs in i)lants " (Davis, : 04/;). Ste- 

 •r\ mC the multinucleate eggs of AlhH<ro bliti 

 rosearc li that has been greatly extended in the 

 lid which is likely to yield very important con- 

 iationships and evolution of the Fhycomycetes 

 ^. c:onditions similar to Albugo bliti \^qxq 

 wing year by Hari)er, : 00/;, for Pyronema, and 

 rs have described, with greater or less fullness, 

 hehax ior of c(enogametes in some other Asco- 

 the Peronos[)orales (species of Albugo) and in 



di.scuss the details of these investigations with 

 pon the i)rol)lems of phylogeny as this has 



er both found that the multinucleate female 

 iid Pyronema was fertilized by the introduc- 

 K'r ot nuclei trom the antheridium. These 

 "tf and fused, a male with a female, in the 

 "plasm so tliat the fertilized cell finally con- 

 er ot fusion nuclei. A similar history was 

 . in Albugo portulaaxe and Albugo 



These 



; the 



processes of fertilization in the above forms a: 



any plant tyi)e. 

 and especially the nuclear history of othe; 



