178 FIELD OATS. 



iii. The three similar sta mem. Examine one care- 

 fully, and note three parts : 



a. The slender thread, filament, carrying at 

 its apex 



/?. A two-lobed body, the anther ; note 

 the deep groove lengthwise of each lobe, 

 and the point of attachment of the fila- 

 ment. 



y. Tear open an anther, or examine one 

 which has burst, and notice the cavities 

 contain ing pollen ; the color and powderi- 

 ness of the grains. 



d. Draw a stamen, 

 iv. The hairy body in the midst of the stamens, 



the pistil. Note its three parts: 



a. The large, top-shaped part at the base, 

 clothed with white hairs, the ovary. 



/?. The two thread-like bodies arising from 

 the top of the ovary, the styles. 



y. The numerous branches 5 of the styles 

 arranged like the barbs of a feather, the 

 stigmas. 



d. Draw a pistil. 



Cut a pistil in two longitudinally between the styles, 

 and notice 



. The thick but delicate wall of the ovary. 



2,. The ovule of denser tissue closely adher- 

 ing to it, and mostly occupied by 



77. A cavity, filled when growing with the 

 transparent endosperm, which cannot now 

 be easily detected. In this cavity notice 



5 If hidden by many adherent pollen grains, brush them off with a camel's- 

 hair brush. 



