Biological Papers. 89 



26 I. Chictochloaramisetum (Scribn.) n. comb. (/^a>itcuwi8M5flpicotK»tVasey, same bulle- 

 tin and page as above. 1889. name preoccupied : P. raTnisetumScribn., Circ. 27, Div. Agrost.. 

 Dept. AgT., p. 9; 1900.) Hidalgo Pigeon-grass. Plains of southern and western Texas. 



261. Chjetochloa occidentalis Nash. Western Pigeon-grass, Reported 

 from Kansas. 



2G2. Chfetochloa viridis Scribn. Pigeon-grass; "Green Foxtail." Gen- 

 eral over the state ; introduced ; common. (ASU) Where this grass grows 

 freely in rich cultivated ground the panicle is greatly increased in size, be- 

 coming decompound and heavily seeded, much like the next two. 



263. Chjetochloa italica Scribn. Itahan Millet. Inclined 'occasionally 

 to escape from cultivation ; not naturalized. When it runs wild it tends to 

 revert to a form approaching the preceding. 



264. Chaetochloa germanica (Mill.) Hungarian Grass, Escapes for a 

 year or two; not naturalized. 



265. Chaetochloa verticillata Scribn. Bur Pigeon-grass ; " Bristly Fox- 

 tail." Douglas county ; rare. (S) 



266. Cenchrus carolinianus Walt. CNot C. tribuloides h.) Bur-grass; 

 "Sand-bur." Sandy lands and neglected fields anywhere ; too frequent on 

 some farms ; it loves indolent people. An excellent fodder when cut young. 

 (ASU) 



267. Penicillaria spicata Willd. (Pennisetum typhoideum Rich.) Pearl 

 Millet. Occasional in cultivation. 



Tribe d. Oryzese. Rice-grass Tribe. Spikelets unisexual or perfect, in 

 loose panicles; rachilla articulated below the scales; spikelets later- 

 ally compressed; stamens often 6, 



268. Zizania palustris L. Indian Wild-rice; Water-oats. Frequently in- 

 troduced by hunters and planted as food for wild ducks in little lakes of 

 Linn, Miami, Johnson, Douglas, Franklin, Sedgwick and other counties of 

 eastern and southern Kansas; yet not often seen; does not appear to do 

 well. June. 



269. Homalocenchrus virginicus Britt. White Cut-grass. Wet spots 

 and slow streams, E. K. ; frequent. Aug. (ASU) 



270. Homalocenchrus oryzoides Pollich. Rice Cut-grass; Scratch-grass. 

 Marshy and meadow lands, E. and S. K.; rare. Aug. (ASU) 



271. Homalocenchrus lenticularis Scribn. Catchfly Cut-grass. Wet 

 grounds, E. and S. K,; frequent. July. (ASU) 



Family 33. Poace^e. Meadow-grass Family. 

 Spikelets laterally or dorsally compressed, one- to many-flowered, the rudi- 

 mentary floret, if any, usually uppermost; the rachilla articulated above 

 the two "empty scales" of the involucel (below them in Alopecurus, Poly- 

 pogon, Cinna, Holcus, Sphenopholis, Spartina, and Beckmannia). When 

 the spikelets have two or more florets there is an articulation of the 

 rachilla below each floret, so that the seeds fall either singly or in groups, 

 leaving the two involucel scales attached to the end of the rachilla. The 

 family comprises the following tribes: Tribe e, Phalarideiv, with empty 

 scales two, and sterile glumes two; tribe /, Agrostidese, with empty scales 

 two; tribe (/, Aveneic, with two or more flowers in each spikelet; tribe h, 

 Chloridex, with spikelets in two rows on each of several preajstivally di- 



