APPENDIX. 



2:. 7 



TABLE IV. 

 RESTING PERIODS IN THE GENETIC CYCLE. 



Mosses and Hepaticas } 

 protospores ) 



Ferns and Eqiiiseta \ 

 gamospores ^ 



In the middle of the Protomorphic 

 stage. 



Between the Orthomoi'pliic and Ga- 

 momorphic. 



Between the Protomorphic (einljr}'- 

 ogeny) and the Ortliomorphic (vege- 

 tation commencing with germina- 

 tion). 



Coniferse present also another resting period, in the middle of 



the Gamomorphic stage (during the 

 maturation of the fruit). 



Phanerogamia 

 seeds 



AnimalB in general, 

 eggs or ova, 



Insects, Trematoda, 



&C.J 



Between the Gamomorphic (maturation 

 of the reproductive organs), and the 

 Protomorphic (embryogeny). 



Have also a resting period (pupa or en- 

 cysted state) during their metamor- 

 phosis, in the early part of the Oi-tho- 

 morphic stage. 



Mammalia have no obvious resting period, the mature ova re- 

 quiring immediate fecundation, which is at once followed 1>y seg- 

 mentation and the development of the embryo. 



The bodies which, under the names of statoblasts, bulbs, restiiiff 

 spores, (fee. , perform the part of eggs or seeds in some species of 

 animals and plants, appear occasionally to be gemma?, which 

 may be termed accessory, as Ipng out of the direct genetic cycle. 



