118 



DOMESTIC BOTANY. 



CLASS III.— ENDOGEITS. 



Embryo with one cotyledon. Leaves with simple or 

 forked, free not netted veins. Stems homogeneous, with- 

 out true bark. 



Fig. 12. 



a, h. Germination of Seed ; c. Section of Palm Stem ; 

 d. Leaf showing the parallel free veins. 



This class contains the Grass, Rush, Lily, Palm, and 

 Pine-apple families, and is readily known by the leaves 

 having parallel, or divergent veins, as well as by the one 

 seed lobe, which characters distinguish them from 

 Exogens (fig. 12, a, b, c, d). 



With the exception of the Arum family, the normal 

 number of the development of parts is 3, or its multiple, 

 thus the floral §-, separate or more or less united 

 stamens 3 — 6 — 9. With the excep^tion of the Grass 

 alliance the ovary is 3-celled, and its being inferior or 

 superior presents the most important divisional cha- 

 racters. 



