LIST OF ILLUSTRATIONS xi 



Fig. Page 



50. A, spikelet of Bouteloua curtipendula; B, fertile lemma 



spread out; C, sterile lemma spread out; D, inflores- 

 cence 57 



51. A, spikelet of Bouteloua gracilis; B, fertile lemma spread 



out; C, first sterile lemma spread out; D, second sterile 

 lemma spread out; E, inflorescence 58 



52. A, fascicle of ^gopogon tenellus; B, lemma, and C, palea, 



spread out, of the sterile spikelet; D, lemma and E, 

 palea of perfect spikelet 61 



53. A, fascicle of Hilaria Belangeri; B, glumes of staminate 



spikelet; C, two views of the perfect spikelet; D, fertile 

 floret 62 



54. A, bur-like fascicle of Nazia aliena; B, single spikelet; 



C, floret 63 



55. A, spikelet of Anthoxanthum odoratum; B, pair of sterile 



florets below the perfect floret; C, perfect floret 64 



56. A, spikelet of Phalaris canariensis; B, fertile floret with 



pair of small sterile florets attached at the base 65 



57. Spikelet of rice {Oryza saliva) 66 



58. Spikelet of Homalocenchrus oryzoides 66 



59. A, pistillate spikelet, and B, staminate spikelet of Zizania 



palustris 66 



60. A, spikelet of Panicum miliaceum, side view; B, same 



seen from the back; C, sterile and fertile florets removed 

 from the glumes, side view; D, fertile floret 69 



61. A, two views of spikelet of Syntherisma sanguinalis; 



B, fertile floret; C, inflorescence 70 



62. A, two views of spikelet of Paspalum loeve; B, fertile 



floret; C, inflorescence 71 



63. A, rachis of Paspalum Imve, spikelets removed; B, rachis 



of a Paspalum with paired spikelets; C, cross-section of 

 rachis, showing raised center and thin margins 71 



64. A, part of a raceme of Stenotaphrum secundatum, front 



view showing spikelets; B, back view of three 

 joints 72 



