LIST OF ILLUSTRATIONS xiii 



Fig. Page 



80. A, two joints of pistillate part of raceme of Tripsacum 



dactyloides; B, spikelet removed from the joint; C, 

 rachis joint from which the spikelet has been removed; 

 D, inflorescence; E, diagram of rachis of pistillate part; 

 F, pair of stamin ate spikelets 89 



81. A, part of a cross section of an ear of corn, Zea Mays, 



showing two pistillate spikelets standing at right angles 

 to their axis (the cob); B, pistillate spikelet about 

 flowering time; C, part of raceme of staminate spikelets 91 



82. A, pistillate inflorescence of Bulbilis dactyloides; B, pis- 



tillate spikelet cut from the rachis; C, pistillate floret; 

 D, diagram of half a head, showing one of the two rows 

 of spikelets; E, staminate inflorescence; F, staminate 

 spikelet 92 



83. Diagram of inflorescence of Festuceae 95 



84. Diagram of inflorescence of Hordese 95 



85. Diagram of inflorescence of Avenese 95 



86. Diagram of inflorescence of Agrostidese 96 



87. Diagram of inflorescence of Chloridese 96 



88. Diagram of inflorescence of NazieaB 96 



89. Diagram of inflorescence of Phalaridese 97 



90. Diagram of inflorescence of Oryzese 97 



91. Diagram of inflorescence of Zizaniese 97 



92. Diagram of inflorescence of Panicese 98 



93. Diagram of inflorescence of Andropogonese 99 



94. Diagram of inflorescence of Tripsacese 99 



