376 APPENDIX. [app i. 



Flowering Glume navicular, coriaceous, laterally com- 

 pressed, carinate, obscurely five-nerved, apiculate or aristate, the 

 scabrous awn often many times longer than the spikelet, thinly 

 setulose-hispid externally at least on the keel, or glabrate. 



Pale equalling or nearly equalling the flowering glume, coria- 

 ceous, laterally compressed, obscurely three-nerved, mucronate 

 or apiculate, thinly and minutely appressed-hispid or glabrate. 



Stamens hypogynous, hexandrous ;Jilajfzents filiform ; anthers 

 versatile linear bilocular dehiscing longitudinally. 



Lodicules two, glabrous fleshy. 



Pistil syncarpous ; ovary globose or ovoid glabrous one- 

 celled ; styles two, slender ; stigmas plumose ; ovule solitary. 



Fruit a free linear or oblong caryopsis, closely invested by 

 the persistent flowering glume and pale ; embjyo oblique, at the 

 base of horny albumen. 



N.B. — Rice occurs under many varieties, as do several of the 

 plants here briefly described. The varieties of Rice differ in 

 the presence or absence of an awn to the flowering glume, the 

 colour of the glumes, the form of the caryopsis, and in other 

 trivial characters. 



