520 BOTANICAL SURVEY OF DISMAL SWAMP REG-ION. 



Carex verrucosa Muhl. Sandy banks of the Dismal Swamp Canal, Wallaceton, 



November 4; in a grassy swale, "The Desert," Cape Henry, July 27 (No. 1844) ; 



in marshes and along ditches, especially in pine woods, Newbern (No. 1970) 



and Elizabeth City (No. 2002), N. C. 

 Carex virescens Muhl. Swampy woods. Northwest. Norfolk County, May 11 



(No. HOG). 

 Carex vulpinoidea Michx. In a ditch along the railway, Suffolk, May 19 (No. 



1255). 



ARACEAE. 



Acorus calamus L. Abundant in fresh-water marshes along the Northwest 



River, May 11 (No. 1085). 

 Arisaema triphyllum (L.) Torr. In low woods, Ocean View, May (5 (No. 1007). 

 Peltandra virginica (L. ) Kunth. In marshes; near Virginia Beach, May 28 (No. 



1881); Elizabeth City, N. C, August 2 (No. 2000). 



LEMNACEAE. 



Spirodela polyrhiza (L.) Schleid. Covering surface of a bayou, Edenton, N. C, 

 July 29 (No. 1894). 



XYRIDACEAE. 



Xyris ambigua Beyrich. In an open, sedgy bog, Newbern, N. C August 1 (No. 



1976), 

 Xyris caroliniana Walt. Frequent in bogs and along ditches, July (Nos. 1G85, 



1820, 1920). 

 Xyris torta J. E. Smith. In open, sedgy bogs near Newbern. N. C, August 1 



(No. 1984). 

 Xyris sp. Apparently intermediate between A', caroliniana and X. platylepis 



Chapm. In marshy ground in the pine woods, Virginia Beach. October 2 (No. 



2088). 



ERIOCAULACEAE. 



Eriocaulon decangulare L. Marshy banks of the Northwest River, July 9 (No. 



1558). 

 Lachnocaulon anceps (Walt. ) Morong. In an open, sedgy bog, Newbern, N. C„ 



August 1 (No. 1040). 



BROMELIACEAE. 



Tillandsia usneoides L. Not abundant in Virginia; common in North Carolina. 

 On old cypress trees, margin of Lake Drummond, Dismal Swamp, May 2 (No. 

 78, C. & K. ); on the branches of Fagus, Qiiercus minor, Pimm taeda, P, echi- 

 nata, etc., about ponds and along Long Creek, in "The Desert,'' Cape Henry, 

 July 27 (No. 1888). 



COMMELINACEAE. 



Commelina erecta L. Sandy shores of Lynnhaven Bay, .Inly 27 (No. 184(5). 



PONTEDERIACEAE. 



Pontederia cordata L. Very common in fresh-water river marshes (No. 1551). 



JUNCACEAE. 1 



Juncus acuminatus Michx. Common in marshes and shallow water, especially 

 in sandy soil (Nos. 1078, 1481. 1478,1610.1639). 



1 Determined by Mr. Frederick V. Coville. 



