Periodical* 

 PhenologT 

 Philosopliv 

 Pliylogeny 



PliTsiological cliemistrv 

 Physiology, General 



of the vegetative organs 



Plankton . 



Plants, Diseases due to . . 



Plastids 



Propagation, Vegetative organs 



of 1700, 



Reparative processes 

 Eeproduction, Asexual . . 



Physiology of 



Vegetative . . 



Eeprodnetive organs .. 1350, 

 Eespiraticn 



Eoot 1200, 



Saprophytism 

 Schizophycese 

 Secretorv tissues . . 



Seed ■ 1600, 



Selection, Artificial 



• Natural 



Sexual organs, Crvptogamic 



Shoot .. .'. .. 1050, 



Societies, Eeports of 



Sporangia . . 



Crvptogamic 



