34 Holm — Additions to tlie Flora of Washington. 



234. Phaseolus perennis Walt. 



Near Carlins, Va., and near Fort Reynolds. G. H. Hicks. 

 250. Spiraea Aruncus L. 



Very common near (^iarrett Park. The author. 

 256. Rubus hispidus L. 



Exceedingly abundant in the swamps near Surattsville. W. T. Swingle, 

 M. B. Waite and the author. 

 259. Rubus cuneifolius Pursh. 



Dry hillside near Silver Hill P. 0. The author. 

 270. Poterium Canadense B. & H. 



Terra Cotta swamp. The author. 

 272. Rosa setigera Michx. 



Along Rock Creek belo^v Pierce's Mill. G. H. Hicks. 

 278. Pirus coronaria L. 



South Brookland. Robert Ridgway. 

 295a. Ribes floridum I'Her. 



Near the Baptist Church in Brookland, 18!)o. Now destroyed. The 

 autlior. 

 300. Drosera rotundifolia L. 



Common in swamps between Camp Spring P. O. and Surattsville. 

 G. W. Oliver and the author. 



304. Proserpinaca palustris L. 



Not common. One mile above Glen Echo. T. H. Kearney, Jr. 

 304a. Callitriche Austin! Eng. 



Several places in the woods around Brookland. The author. It is evi- 

 dently not rare, but overlooked. It grows in deep shade on black, rich 

 soil. 



305. Callitriche verna L. 



Pool near Piney Branch, at the north end of Seventeenth street. 

 G. H. Hicks. 

 316a. Oenothera pumila L. 



Near Surattsville. W. T. Swingle and INI. B. Waite. 

 317. Oenothera sinuata L. 



A single specimen was collected in a dry field, South Brookland. Tlie 

 author. 

 327. Hydrocotyle ranunculoides L. 



Under Bennings bridge. The author. Above Rosslyn. G. H. Hicks. 

 339. Chaerophyllum procumbens Crantz. 



Not common, and has only been ol)served along the Potomac shore, on 

 both sides of the river, but especially on the Virginia side. It has been 

 collected on the Maryland side along the Canal, near the Seventh lock, by 

 G. H. Hicks. 

 345. Pastinaca sativa L. 



Clover field in South Brookland ; along the electric car track near Eck- 

 ington. The author. 



