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PLATE E. 



Fig. 23. Heleochloa schoenoides, Host 

 A single floret showing the two stamens. 



Fig. 24. Sporobolus indicus, R. Br. 



a. A closed spikelet. 



b. Ditto open. 



Fig. 25. Polypogon monspeliensis, Desf. 



a. Spikelet showing the long awns to the outer glumes. 



b. Single floret showing the short awn on the back of the flower- 



ing glume. 



Fig. 26. Avena sativa, Linn. 



a. Single spikelet. 



b. Hermaphrodite floret showing the long twisted dorsal awn 



to the flowering glume. 



c. Ditto without the flowering glume and pale. N.B.— The ovary 



is erroneously shown as if it were composed of two distinct carpels, 

 and the feathery stigma on the left is a little out of place. 



Fig. 27. Cynodon Dactylon, Pers. 



A single spikelet. 



