118 Holm Additions to tlie Flora of Washington. 



558. Rhododendron viscosum Torr., var. glaucum Gray. 

 Swamp northwest of Terra Cotta. E. S. Burgess. 



559. Rhododendron vizcosum Torr., var. nitidum Gray. 

 Swamp northwest of Terra Cotta. E. S. Burgess. 



PYROLACE^E. 



564. Pyrola secunda L. 



Near Chain Bridge, on the Virginia shore. The author. 



PRIMULACEJE. 

 577. Lysimachia nummularia L. 



Along a stream near Terra Cotta. I. C. Williams and the 

 author. 



*577<x. Centunculus minimus L. 



Field opposite the white school-house at Woodlawn, along the 

 Alexandria and Accotink turnpike ; last week of June. Wil- 

 liam Hunter. 



579. Samolus Valerandi L., var. Americana Gray. 



Abundant above and below Chain Bridge. Along the Poto- 

 mac below Analostan Island. G. B. Sudworth. 



APOCTNAGEM. 

 585. Vinca minor L. 



Back of Uniontown, along a stream in a hedge of Smilax; 

 thoroughly established. Lester F. Ward. Hillside in South 

 Brookland. The author. 



535a. Apocynum androsaemifolium L. 



Between Corcoran Woods and the Baltimore and Ohio Rail- 

 road. Lester F. Ward and the author. 



ASCLEPIADACE^E. 



594. Asclepi?s obtusifolia Michx. 



Anacostia River below the bridge. Reform School. Terra 

 Cotta. E. S. Burgess. 



