GLIIMIFLOK2E. 



289 



288 D, 291), outside the endosperm; plumule large with several 

 leaf-primordia. On germination the cotyledon remains in the seed. 

 The majority of Grasses are annual or perennial herbs ; tree- 

 like forms being only found in the Tropics, for example, the 

 Bamboos; they branch (in tufts), especially from the axils of the 

 basal -leaves, while those which are borne higher on the stem are 

 separated by longer internodes and have no vegetative branches in 



JI 



FIG. 289. Diagramatic outline c.f 

 a spikelet: n T lower glume; Y 

 upper glume; n I upper pale; I 

 the inner pale ; Z-l lodicules ; it 

 stamens; I-I main azes; II lateral 

 axes. 



FIG. 23?. Bi-omus mollis: A inflorescenco ; 

 iB the uppermost flower of a spikelet, with 

 its axis turned forward j in front is seen the 

 two-keeled inner pale (bracteole) and the 

 stamens protrude between this and the outer 

 rpale (bract) ; C an ovary with the 2 stigmas 

 on its anterior side, the 2 lodicules, and the 

 3 stamens ; D the fruit seen from the dorsal 

 side; JB the same from the ventral side. 



their axils, though a few forms, like Bambusa and Calamagrostis 

 lanceolata, produce branches in these axils. 



Only a few Grasses have a solid stem, such as Maize, Sugar-cane, and Andro- 

 pogon. The blade is flat in the meadow-grasses, but the Grasses which live on 

 dry places (" prairie-grass ") exposed to the sun, often have the blade tightly 



