Phalaris GRAMINEAE Digitaria 



Phalaris L. 



P. canariensis L. Canary Grass. 



Waste places, Wilmington; no recent collections. The source 

 of the canary seed of commerce. Adv. from Europe. 



P. arundinacea L. Reed Canary Grass. 



Swamps and wet depressions in fields and on roadsides; frequent 

 in upper New Castle County; apparently local on the Coastal 

 Plain: coal wharf, Delaware City (NC), Larsen, 18 June 1934 (P); 

 ^ mi. n. of Marydel (Ca), R. R. Tatnall, 3890, 7 July 1938 (T, P); 

 roadside 3^ mi. s. of Coochs Bridge (NC), R. R. Tatnall, 5094, 27 

 May 1944 (T, A). Late May to July. 



Oryzeae 

 Leersia Sw. 

 L. lenticularis Mx. Catchfly Grass. 



Rare and local: margin of cypress swamp, 2 mi. s. w. of Liberty- 

 town (Wo), A. V. Smith & R. R. Tatnall, 4020, 9 Sept. 1938 

 (T, P, A, G). Our only known station, extending the range from 

 southeastern Virginia. 



L. oryzoides (L.) Sw. Rice Cut-grass. 



Common in roadside ditches and on pond margins. Mid- Aug., 

 Sept. 

 L. virginica Willd. White Grass. 



Common in low woods and moist open places. Aug., Sept. 



Zizanieae 

 Zizania L. Indian Rice. 

 Z. aquatica L. (Z. palustris of Gray's Man., ed. 7.) 



Common; tidal marshes, shores and ditches. July to Sept. 



Paniceae 

 Digitaria Heister. 

 D. sanguinalis (L.) Scop. Crab Grass. 



Common in waste places and cultivated ground. Aug., early 

 Sept. Nat. from Europe. 



D. Ischaemum (Schreb.) Muhl. Smooth Crab Grass. 



This and the preceding species are troublesome weeds in lawns 

 and gardens. Sept., early Oct. Nat. from Europe. 



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