MANUAL OF THE GRASSES OF THE UNITED STATES 



771 



Texas; adventive in Kansas, Knox- CYMBOPOGON Spreng. Oilgrass 



ville, Tenn., and in wool waste, 

 Yonkers, N. Y. 



Closely allied to Andropogon; the 

 pairs of racemes included in an in- 

 flated spathe, the spathes in a large 

 compound inflorescence; sessile and 

 pedicellate spikelets of lower pair 

 alike, well developed, but staminate 

 or neuter. Robust mostly aromatic 

 perennials, including the oilgrasses of 

 commerce. The most important are 



Figuee1175. — Vetiveria zizanioides, X H» (Hitchcock 

 9435, Jamaica.) 



