^o. 



the v^ay its pollen spondn the winter, J'or the dovelop- 

 nent of each is much the sane in October, 



I'iOst of the plants sho.vinfi; lonf^ resting; periods 

 in pollen i3X'owt.h belong low in the system, in the Ainen- 

 tiferae. Rut with the exception of some oaks, Hamma- 

 melis has the lonf3;est resting period known. It seems 

 probable then that this resting pex-iod can not be re- 

 garded as a primitive character in any case. I have no 

 sug.gestion to offer as to the use of this x-esting peri- 

 od to the plant. 



