406 MONOCOTYLEDONOUS PLANTS. 



what terete ; florets longer than the bristle at their tips ; leaves pubes- 

 cent above ; root creeping. 



HAB. Dry soils. Penn. MvJd. June. If. Culm 18 inches 

 high, erect. Leaves very long. Panicle contracted. 



5. F. clatior Hnn. : panicle spreading, much branched, loose ; spike- 

 lets ovate-lanceolate, 4 '5-flowered ; florets slightly armed ; leaves 

 flat ; root creeping. 



HAB. Wet meadows. N. S. June. U- Culm S 4 feet high. 

 Panicle 68 inches long, nodding when old. 



6. F. pratensis Huds. : panicle spreading, branched ; spikelets linear, 

 many-flowered, acute ; leaves linear ; root fibrous. 



HAB. Meadows and fields. N. S. June, July. U.Culm 12 

 feet high, erect. Panicle subsecund, nearly simple. Introduced. 



7. F. nutans Willd. ; panicle, diffuse, at length nodding ; branches 

 long, geminate, naked below ; spikelets ovate, 3 5-flowerad ; floreU 

 omewhat obtuse, unarmed, nerveless. 



HAB. Woods and hills. N. J. to Car. W. to Mich. June. 

 It- Culm 3 feet high. Panicle few-flowered, loose. 



8. F. fascicularis Wittd : culm procumbent, geniculate ; panicle sub- 

 secund ; branches straight, spike-like ; spikelets appressed, 8 10- 

 flowered ; florets armed ; leaves very long. F. polystachia Mick. F. 

 procumbens Muhl. 



HAB. Brackish meadows. N. Y. and N. J. Aug. . Culm 

 a foot long, branched from the base. Panicle erect, with spread- 

 ing branches. 



9. F. clandestina Muhl. : panicle partly concealed in the sheaths ; 

 branches solitary, simple ; spikelets 10-flowered ; florets awned, 



HAB. N. Y. MuhLCulm about 8 inches high. Leaves li- 

 near. Spikelets sessile and peduncled. Lower palea with a 

 short bristle. 



10. F. diandra Mich. : panicle close ; branches simple, scattered ; 

 Bpikelets linear, 2 5-flowered ; flowers acuminate, diandrous ; stem 

 wry rough. Diarrhcna americana P. de B. Torr. 



HAB. Banks of the Ohio. Raf. U.Culm "erect, nearly naked, 

 slender. Panicle racemose. 



11. JP. glabra Spreng. : panicle spreading, with the branches secund ; 

 spikelets awnless, 6-flowered ; leaves somewhat rigid and with the 

 heaths very smooth. 



HAB. Long Island. N. Y. Spreng. Schweinitz. 



34. CERATOCHLOA. P.-deBcaur. 



Glumes 12 IS-flowered ; valves shorter than the florets. 

 Palea bifid-toothed ; the lower one mucronate between the 

 teeth. Seed coated, furrowed, 3-horned. Panicle nearly 



