APPENDIX. 2S i 



INFLORESCENCE spicate, 3 4 inches long, tetragonous, rachis 

 compressed, ciliate; spikelets alternate, distichous, compressed, 

 5 9-flowered, sessile, attached by their sides to the rachis. 



OUTER GLUMES nearly equal, coriaceous, ovate, ventricose, 

 obliquely subcarinate, obtuse, apiculate, glabrous. 



FLOWERING GLUME ovate-oblong, coriaceous, ventricose, 

 obscurely 7 cj-nerved, aristate. 



PALE equalling the flowering glume, narrowly oval, obtuse, 

 bicarinate with inflexed margins, angles minutely ciliate. 



STAMENS triandrous, hypogynous ; filaments capillary ; anthers 

 versatile, linear, bilocular, dehiscing longitudinally. 



LODICULES 2. 



PISTIL syncarpous ; ovary superior, I -celled, globose ; style, 

 2 ; stigmas plumose ; ovule solitary. 



FRUIT a free caryopsis ; embryo at the base of mealy albumen. 



N.B. Wheat occurs under many varieties, as indeed do 

 several of the plants which I have described above in brief. 

 The varieties of wheat differ in the presence or absence of an 

 awn to the glumes, and in other trivial characters. 



