SUB-KINGDOM 11. — rilANEROGAM.K. 43 



Section B. Dicotyledones. — Seeds zvith hco or more car pds. Stem 

 *■'■ exogenous,^' with bark, wood, and pith. Leaves nettcd-veined. 



Class III. GYMNOSPERMi^. — Seeds naked, the pollen acting directly 

 upon their surface. Ex. Pines and Cycads. 



Class IV. Angiosperm^, — Seeds enclosed in seed-vessels, the 

 pollen acting through their tissues, Ex. Oak, Beech, and most ordinary 

 trees and shrubs. 



