Coni fer 2E. — Female Organs — Continued. 



Family or Sub-Order. — Taxineae, represented by Yew. 



Abietineae, represented by Scotch Fir. 

 Cupressineae, represented by Cypress. 

 Genus. — Pinus with woody cone. 



Species.— P. sylvestris, or Scotch Fir, with leaves in pairs, and winged seeds. 



Advance in Organization.-lnstezd of being herbaceous, like Selaginella, they are usually trees, and this heavier growth is met by 

 the growing point consisting of a group of cells, and not of a single apical cell, 

 closed mCreaSeS m circumference > an d the vascular bundles possess the power of continuous growth, and are not 



Pollen-grain, representing Microspore, no longer produces antherozoids, but only a pollen-tube. The Antheridial 

 ceil producing a tube instead of antherozoids is a beautiful adaptation to changed conditions. Antherozoids require 

 moisture to move about in, and are adapted for plants living in moist situations; but with the Conifene, inhabiting 



J&.TTl™ T 8 ' SUCh *? a / ran g e ™ ent would be evidently unsuitable, and only a single drop of moisture is pro* 

 video at the entrance gate of the ovule. y 



Embryo-sac, representing Macrospore, develops Endosperm while connected with the parent plant 



