EXPLANATIOX OF PLATE IX. 



SPARTINA. — (1) Portiou of the inflorescence of S. stricta, of the natural 

 size; (2) a spikelet enlarged; and (3) the same displayed, the flower 

 raised ahove the empty glumes. 

 CTENIUM. — (1) Spike of C. Americauum ; (2) a single spikelet magnified; 



and (3) the same displayed, the empty glumes separated. 

 BOUTELOUA. — (1) A portion of the compound spike of B. racemosa, of 

 the natural size; and (2) a spikelet displayed and magnified, the flowers 

 raised out of the empty glumes. 

 GYMNOPOGON. — (1) Inflorescence of G. racemosus, reduced in size; and 



(2) a magnified spikelet with the parts displayed. 

 CYNODON. — (1) Inflorescence of C. Daetylon, of digitate spikes; (2) a 

 spikelet magnified and displayed, shoAving a perfect flower and a rudiment. 

 ELEUSINE. — (1) One of the spikes from the digitate inflorescence of E. 

 Indica; (2) a magnified spikelet; (3) the same with the flowers more 

 displayed; (4) a flower from the last, showing its parts; (5) the fruit 

 magnified, showing the seed loose in the utricle; and (6) the wrinkled 

 seed detached. — (1, under Dactyloctenium) Inflorescence of E. ^gyp- 

 tiaca, of digitate spikes; (2) one of the spikelets magnified; (3) the fruit 

 magnified, showing the seed loose in the thin pericarp (utricle) ; and 

 (4) the wrinkled seed more magnified. 

 DIPLACHNE.— (1) Small portion of the inflorescence of D. f ascicularis ; 

 (2) one of its spikelets displayed and magnified; (3) an open flower of 

 the same. 



