313] FLORA OF COLUMBIA AND VICINITY 171 



605. R. Toxicodendron L. [R. radicaiis L.]. Poison 



IVY. 



Common in all soils and situations; polymorphous, some 

 forms being bushy, others trailing, others high-climbing on 

 trees or cliffs. 



Nova Scotia to British Columbia; Florida to Arizona; 

 Bermuda Islands; Mexico: Eastern Asia. 



Family 62. CELASTRACEAE Lindl. Staff-tree family. 



237. EUONYMUS (EVONIMUS) L. Burning 



BUSH. 



606. E. atropurpureus J acq. Waahoo. 

 Common on rocky banks and in thickets. 



New York and Ontario to Montana; Florida to Texas. 



238. CELASTRUS L. Staff-tree. 



607. 0. scandens L. Climbing bitter-sweet. 

 Frequent in thickets and hawthorn glades. 

 Quebec to Manitoba; Georgia to New Mexico. 



Family 63. STAPHYLEACEAE DC. Bladder-nut family. 



239. STAPHYLEA L. Bladder-nut. 



608. S. trifolia L. [6". trifoliata Schmidt]. 

 Rich wooded hillsides; frequent. 



Quebec to Ontario and Minnesota; Georgia to Tenn- 

 essee and Missouri. 



Family 64. ACERACEAEJ. St. Hil. Maple family. 



240. ACER L. {NEGUNDO Moench: RULAC 

 Adans.]. Maple. 



609. A. rubrum L. Scarlet maple. 

 Very rare along Hinkson creek. 



New Brunswick to Manitoba; Florida to Texas. 



