1909] GRIGGS— AMITOSIS IN SYNCHYTRIUM 137 



and the karyosome fragments into a number of pieces, each of which 

 becomes a new nucleus, thus giving rise to a morula-like cluster of 



nuclei. 



mitosis 



form spores 



chromosomes 



the plant has been detected. 



Omo State University 



Columbus 



LITERATURE CITED 



1. Child, C. M., Studies in the relation between amitosis and mitosis: I, 



The 



Biol. Bull. 12: 



2. 



Moniezia. 



. 1907. 



, Idem: II, The development of the testis and spermatogenesis 



no T>:^1 T>..ii _ _ 



ID 



3 



a*. J3101. Hull. 12:175-224. I907. 



, Idem: III, Maturation, fertilization, and cleavage in Moniezia. 



hill ti.^Q ,*- _ 



4. 



Biol. Bull. 13:138-160. 1907. 



vuu . ±6 , 1^0-100. 1907. 



" , Idem: IV, Nuclear division in the somatic structures of the pro- 

 glottids of Moniezia. V, General discussion and conclusions concerning 



Moniezia. Biol. Bull. 13:165-185. 1907 



5 * « Amitosis as a factor in normal and regulatory growth. Anat. 



A nz eig. 3 o: 27l _ 297> IO o 7 . 



• Glaser, O. G., Pathological amitosis in the food ova of Fasciolaria. Biol. 

 Bull. m:t->i t^„ 



- -, he cytology of Synchytrium. Ill, The r61e of the cen- 



trosomes in the reconstruction of the nuclear membrane. Ohio Nat. 8: 



Bull. 13:1-4. I907> 



Bot. Mag. 



Bot. Mag 



2 77-286. 1908. 

 »• Kusano, S., On the nucleus 



r <*Joax:ii8. 1907. 



,0 ^Ij 0n the c y to i°gy of 



' ~~> 0n a disease caused 

 22 : 1. 1908. 



' 7~~~~' 0n ka ryodermatbplast, a nuclear-membrane-forming body [in 



"• w*. **•: M * T ° k *> " : -s. .908. . 



U ' f ' L > Some remarkable nuclear structures in Synchytnum. Ann. 

 I 3> g^ 0, 5: 480-484. 1907. 

 ' der^' F * L - AND A - c -» Mitosis in the primary nucleus of Synchytrium 

 * tpms - B ^- Gazette 35:405. x 9 o 3 . 



EXPLANATION OF PLATES III AND TV 



00m Peia^ UreS WCre aU made with a ^ncer 1 . 5 mm immersion objective and 



n 8 ocular i 2 , gi ving a magn ifi cat { on f 2130, excepting fig. f, for 



