88 Kansas Academy of Science. 



Setaria Ixvigata (Muhl.) Chapm. Flo. S. S.. ed. 3. p. 387. 



Chsctochloa glauca, var. perennis Curtiss. Beal's Grasses of N. A., ii (1896), p. 156. 

 Chxtochloa imberbis (Poir.) Scribn. Bull. 4. U. S. Dept. Agr.. Div. Agrost. (1897), p. 39. 

 Chxtochloa perennis (Curt.) Bicknell. Bull. Torr. Bot. Club, xxv (1898), p. 107. 

 Chxtochloa Ixvigata Scribn. Bull. 21, U. S. Dept. Agr., Div. Agrost. (1900), p. 10, 

 evidently repeated from some publication earlier. 



A somewhat cespitose glabrous perennial, from slender, creeping root- 

 stocks; culms slender, compressed, erector ascending, somewhat geniculate 

 at the base, scabrous below the panicle, otherwise smooth; nodes glabrous; 

 sheaths glabrous, the lower longer than the internodes; ligule ciliate; blades 

 1-3 dm. long, 3-7 mm. wide, tapering to the tip; scabrous on the upper sur- 

 face and margins, glabrous below. Panicles dense, spike-like, 2-5 cm. long, 

 1 cm. thick; exclusive of the setee; rachis angular, pubescent; setas 8-12, 

 spreading, 5-10 mm. long, yellowish or purplish sometimes. Spikelets ovate, 

 acute, 2-2^ mm. long, surpassed by the setas. Moist soil. New Jersey to 

 Florida, north to Kansas. May to October. F. L. Scribner, in Bull. 21, 

 Div. Agrost. 



258. Chaetochloa perennis (Hall & Henry). Salt-meadow Pigeon-grass. 



Setaria glauca Beauv., var. Isevigata Chapm. Hall, Plantas Texanse, 1872, No. 839; 

 Contr. U. S. Nat. Herb., iii. No. 1 (1891). 38. 



Setaria perennis Hall & Henry. Dr. Joseph Henry, of Salina, Kan., in Bulletin of 

 Washburn Lab. of Nat. Hist., by F. W. Cragin. ii (1889), p. 63. 



Setaria glauca, P. Br., var. Ixvigata Chapm. Coulter, Contr. U. S. Nat. Herb., i (1890). 

 p. 55 (No. 677). 



Setaria perennis Hall. Smyth, in Check-list of the Plants of Kansas, Aug. 1892, p. 26 

 ( No. 1728, incorrectly credited and imperfectly described ). Same improper entry repeated 

 in Transactions Kansas Acad of Science, xiii (1893), p. 192. 



Setaria glauca (L.) Beauv., var. laevigata (Muhl.) Chapm. Coulter, in Cont. U. S. Nat. 

 Herb., ii. No. 3 (1894), p. 509. 



Chxtochloa versicolor Bicknell. Bull. Torr. Bot. Club, xxv (1898), p. 105, pi. 329. 



Chxtochloa imberbis perennis (Hall) S. & M. Bull. 21, U. S. Dept. Agr., Div. Agrost. 

 (1900). p. 12. 



Setaria imberbis R. & S., var. perennis (Hall) Hitchc. Gray's Manual, 7th ed., 1908. 



Culms scarcely tufted, slender, decumbent, ascending, or erect, 6-11 m. 

 long; blades 2-6 dm. long; spike cylindrical, simple or slightly compound, 

 long-exserted, 2-6 cm. long; spikelets generally purplish; bristles few, 

 slender, yellowish-green, shading to purple, and scarcely extending beyond 

 the spikelets. Propagates freely by slender perennial rootstocks, and sel- 

 dom ripens seed where cattle freely graze. Frequent in damp alkaline and 

 saline bottoms and meadows in Shawnee, Wabaunsee, Dickinson, Saline, 

 McPherson, Reno, Sedgwick, Kingman, Pratt, Meade, Seward, and other 

 counties of central and southern Kansas. August. (AS) A variable spe- 

 cies ; several forms, probably all of the same species, occur in Kansas. 



The following perennial panicums, in which the panicle is a simple cylin- 

 drical or somewhat compound spike, the rachis of the inflorescence is pro- 

 longed beyond the upper spikelet into an awn or bristle, and one or more 

 persistent setje are inserted on the rachis below the articulation of the 

 spikelets, thus answering the principal requirements of Chsctochloa as now 

 delimited by botanists, should be removed from the very large and hetero- 

 geneous genus Panicum, and added to the restricted genus Chsetochloa, 

 with which they are more nearly allied: 



259. Chsetochloa reverchoni (Vase.v ) n. comb. {Panicum reverehoni Vasey, Bull. No. 8, 

 Bot. Div., Dept. Agr., p. 25.) Chapparal Millet. High lands of central and northern Texas. 



