LIST OF ILLUSTRATIONS xi 



Fig. Page 



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



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

 cence 57 



51. A, spikeWt 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 teneUus; B, lemma, and C, palea, 



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



palea of perfect spikelet 61 



63. 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 odoraium; B, pair of sterile 



florets below the perfect floret; C, perfect floret 64 



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



pair of small sterile florets attached at the base 65 



57. Spikelet of rice (Oryza sativa) 66 



58. Spikelet of Homalocenchrus oryzoides 66 



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



palustris J 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, fertUe 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 hive; B, fertile 



floret; C, inflorescence 71 



63. A, rachis of Paspalum Iceve, 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 Stenotaphrwn secundatum, front 



view showing spikelets; B, back view of three 

 joints 72 



