130 SYSTEMATIC BOTANY. 



Fig. 125. 



Fig. 125. — Carpellary scale with two seeds from 

 a ripe cone of the Akamatsu. 



Group I. ANGIOSPERM^E. 



Some plants of this group, as the Daidzu and Asagao 

 (Fig. 90) have dicotyledonous seeds ; while others-, as the 

 Ine and Omugi (Fig. 89), have monocotyledonous seeds. 

 Those of the former kind are called Dicotylea, and those of 

 the latter Monocotylem. 



Angiospermse are thus divided into the two classes 

 Dicotylece and Monocotylece. 



. I Class I. Dicotylese. 



ANGIOSPERMiEM n , TT ^ J , , 



( Class II. Monocotyleae. 



In the plants belonging to Dicotylese and G-ymnospermEe, the stem is 

 provided with open fibrovascular. bundles arranged in circles. If the 

 stem of a Sakura which is several years old be transversely cut, numerous 

 concentric la,yers will be seen in the xylem. These layers are termed 

 Annual Mings. They result from the fact that the cells formed in the 

 spring have a much larger radial, diameter than those formed in the 

 autumn. 



In the stems of Monocotylese and Cryptogams, the fibrovascular bundles 

 are irregularly arranged. 



