Rhus ANACARDIACEAE— AQUIFOLIACEAE Ilex 



Tatnall, 2952, 4 June 1936 (T); 4 mi. n. w. of Easton (Ta), Earle, 

 1753, 3 Aug. 1938 (P). June. 



R. glabra L. Smooth Sumac. 



Common in dry soil of the Piedmont; seldom collected on the 

 Coastal Plain: near Trappe (Ta), Earle, 2239, in 1939 (P). June, 

 July. 



^^ y 



» R. copallina L. Dwarf Sumac. 



Common in dry soil, salt marshes and coastal sands, practically 

 throughout the Peninsula. July, Aug. J vx _v t -'-^ 



R. Vernix L. (R. venenata DC.) Swamp Sumac. Poison Sumac. 



Frequent in swampy ground, chiefly on the Coastal Plain near 

 the Fall Line; seldom collected farther south. Late May through 

 June. 



/ R. radicans L. See Fernald: Rhodora 43, 589-599. 1941. Poison 

 Ivy. 

 Common everywhere. May, June. v v,A C ^-Cr ^ r< 



R. Toxicodendron L. (R. quercifolia (Mx.) Steud. See Fernald, 

 1. c.) Poison Oak. 



Less common than the last, in sandy soil of the Coastal Plain. 



AQUIFOLIACEAE (Holly Family) 



Ilex L. Holly. 



I. opaca Ait. American Holly. 



Common from Cape Charles northward on the Coastal Plain, 

 where it frequently attains a diameter of a foot or more ; less frequent 

 in the Piedmont. Fl. May, June. e.^ 



I. vomitoria Ait. Cassena. Yaupon. 



Rare, in southern Northampton County: south shore of Old 

 Plantation Creek, w. of Capeville, Mrs. R. R. Tatnall (R. R. T. 

 1796), 28 May 1933 (A, P, T, G), and later collections; near Town- 

 send, Fernald, Long & Fogg, 5354, in 1935 (G, P, T). Fl. May. 



/**■ I. verticillata (L.) Gray. Black Alder. Winterberry. 



Common in moist thickets, from the Pennsylvania line south- 

 ward at least to Worcester County. Fl. mid-June to early July. 



