682 ROTANIOAL SURVEY OF DISMAL SWAMP REGION. 



Tragia urens L. Dry sandy soil in open pine woods, Lynnhaven Bay (No. 3115). 

 Jatropha stimulosa Michx. Sandy soil, fields, and open pine woods, Ocean View, 



May is (No. 1223); near Suffolk, July 18 (No. 1727); Lynnhaven Bay. 

 Euphorbia ipecacuanhae L. Sandy soil in open woods, near Suffolk, July 18. 

 Euphorbia maculata L. Along railway, Edenton, N. C, July 29 (No. 1804). 

 Euphorbia nutans Lag. Roadside near Virginia Beach, October 3 (No. 210S). 

 Euphorbia polygonifolia L. Among the outer sand dunes, common, ( )cean View 



to Virginia Beach (Nos. 1812, 2062). 



CALLITRICHACEAE. 



Callitriche heterophylla Pursh. In shallow ponds, common (Nos. 1100, 1 256, 

 1257). 



ANACARDIACEAE. 



Rhus copallina L. Common in dry soil, fields, fence rows, open woods, etc. 



(Nos. 1150, 1683, 2373). 

 Rhus glabra L. Near Suffolk. 

 Rhus radicans L. Common, especially in low woods (Nos. 1026, 1123, 1750). 



Local name, "'cow itch." 

 Rhus toxicodendron L. In dry woodlands, near Cape Henry (No. 1863); near 



Kempsville, Princess Anne County (No. 2165). 

 Rhus vernix L. Frequent in the more open parts of the wooded swamps. Known 



locally as "boar wood." 



CYRILLACEAE. 

 Cyrilla racemiflora Walt. In a small swamp along a brook. Newbern, N. C. 



ILICACEAE. 



Ilex caroliniana (Walt.) Trelease. In dry sandy soil in copses near the Trent 



River, Newbern, N. C. (No. 2214). 

 Ilex decidua Walt. Fre juent in the Dismal Swamp (No 1667): at water's edge 



along Cohoon ('reek above Suffolk (No, 1700). 

 Ilex glabra (L.) A. Gray. Common, especially in low pine woods (Nos. 1207, 



2385). 

 Ilex lucida (Ait.) Torr. & Gr. Frequent about Lake Drummond (Nos. 05 and 



106 C. & K., 1657. 1661). 

 Ilex opaca Ait. Common, especially in rather moist woods, May (Nos. 1117, 



1188). 

 Ilex verticillata (L. ) A. Gray. In the Nyssa biflora forest near Lake Drummond, 



Dismal Swamp, not common (No. 1644). 



CELASTRACEAE. 



Euonymus americanus L. Frequent in low woods and wooded swamps (Nos. 

 105 C. &K., 1347, 2102). 



ACERACEAE. 



Acer rubrum L. In low woods and wooded swamps, one of the most abundant 

 trees of the region (No. 1637); in clearings about Lake Drummond, Dismal 

 Swamp, occurs a form (No. 1660) with leaves less sharply lobed and white 

 and somewhat pubescent on the under surface, which may be _l. drummondii 

 Hook. & Arn. 



IMPATIENTACEAE. 

 Impatiens biflora Walt. Shaded soil on Lake Drummond. Dismal Swamp. 



