Steele Additions to the Flora of Washington. 53 



*H37a. PoaflavaL. 



Near railroad north of North Brookland, July 22, 1896; not since seen. 



1129. Panicularia Canadensis(Michx.) Kuntze. (Glyeerict, of Ward's 



Catalogue. ) 



Terra Cotta Swamp, collected in overripe condition in 1896 or 1897; in 

 good condition June 23, 1899. Seen also in a swamp south of Four Mile 

 Run. 

 1128^. Panicularia pallida (Torr.) Kuntze. 



Bladensburg, a short distance beyond the spring, June 17, 1899. 



1130. Panicularia fluitans (L.) Kuntze. 



Feeder Dam, May 28, 1897. Seen also at Bladensburg, not far from 

 the spring. 

 *ii5ir'. Bromus purgans incanus Shear. 



Plummer's Island, August 24, 1897; also Four Mile Run and near 

 canal below Cabin John. This grass blooms two months later than B. 

 cilialus. Only a few of the upper leaves remain green at flowering time, 

 commonly overtopping the surrounding vegetation. 

 *ii5itf. Bromus unioloides (Willd.) H. B. K. 



Dumping grounds, May 28, 1898 and June 12, 1899. 

 *H5i&. Bromus inermis Leyss. 



Dumping grounds, June 14, 1899; June 8, 1901. 

 *H5irf. Bromus maximus Desf. 



Dumping ground, June 5, 1901. 

 *ii56a. Hordeum pusillum Nutt. 



South Washington, 1896; Canal road, May 24, 1898. 

 *H56&. Hordeum murinum L. 



Dumping grounds, May 28, 1898. 

 989. Cyperus microdontus Torr. 



Bladensburg, September 7, 1896. Anacostia road above Kenilworth, 

 October 1, 1899, September 20, 1900. Seen also on the railroad a mile 

 above Anacostia. Grows always in wet sand, and sometimes fruits at 

 the height of an inch or two. This is doubtless the C. Nuttullii of 

 Ward's Flora, as that species can scarcely occur here. 

 99O. Cyperus inflexus Muhl. 



Margin of water, Jackson City, August 1, 1899; Chain Bridge, Vir 

 ginia side, August 17, 1900. Has the fragrance when dried of slippery 

 elm. 

 *99i. Cyperus fuscus viridescens Hoffm. 



Sewer at the foot of Duke street, Alexandria, September 4, 1899. 

 *99i6. Cyperus rotundus L. 



A small patch on the waste ground west of the old fish pond, October 

 13, 1899. 

 993- Cyperus strigosus L. 



Besides the type the varieties compositus and robuztior seem to be dis 

 tinguishable here, the former, however, not very common. 



