EXPLANATION OF PLATE XIV. 



CENCHRUS. (1) Involucre of C. tribuloides, in flower, enlarged; (2) lon- 

 gitudinal section of the same; (3) a spikelet displayed (the stigmas 

 should belong to the right-hand flower ; the left-hand or lower flower is 

 only staminate). 



TRIPS ACUM.-(l) Piece of the spike (of the natural size), pistillate below, 

 staminate above ; (2) a longitudinal section of one of the pistillate spike- 

 lets; (3) a pistillate spikelet with its parts displayed; (4) a staminate 

 (two-flowered) spikelet, with its parts displayed. 



ERIANTHUS. (1) Part of the hairy inflorescence with two spikelets of E. 

 saccharoides, enlarged; (2) one of the spikelets displayed. 



ANDROPOGON. (1) Small portion of the spike of A. furcatus, enlarged, 

 with one fertile and awned spikelet, and one staminate and awiiless spike- 

 let; (2) the fertile spikelet, and (3) the stamiuate spikelet, displayed. 



CHR YSOPOGON. ( I ) A fertile spikelet of C. nutans, enlarged, with a 

 sterile pedicel on each side; (2) the spikelet displayed. 



