— 389 — 



Fig. 8 ( 2500 / 1 ). 



a-e: Homotypic ana-telophases in spontaneous hybrid parv, lut. 

 (V. 246—14). 



f: Homotypic telophasis in artificial hybrid parv, p all (F x ). 



Fig. 9 ( 2 ^/i). 



a-b : V. tricolor nana, 

 a: Interkinesis; 2 chromosomes are lost. 

 b: Homotypic metaphasis, regular. 13+ 13 chromosomes, 

 c: V. tricolor lutea; homotypic metaphasis. 12 + 12 chromosomes in 

 the nuclear plates + 2 lost in heterotypic division. 



