FLORA OF VERMONT 59 



CELASTRACEAE 



CELASTRUS 

 C. scandens, L. Bittersweet. Moist banks and thickets ; common. 



SAPINDACEAE. MAPLE FAMILY 



ACER. Maple 



A. Negundo, Linn. (Negundo aceroides, Moench.) Boxelder. Frequent 



along the banks of the Winooski River. 

 A. Pennsylvanicum, L. Striped Maple. Rich woods ; common. 

 A. rubrum, L. Red Maple. Moist woods and swamps ; common. 



A. saccharinum, L. (A. dasycarpum, Ehrh.) Silver Maple. Banks of 

 rivers and lakes at low altitudes ; frequent. 



A. Saccharum, Marsh. (A. saccharinum, Wang. ) Sugar Maple. Rich woods; 

 common. 



A. Saccharum, Marsh, var. nigrum, Britton. Black Sugar Maple. Moist soil, 

 Lake Champlain valley ; occasional. " Windsor," Michaux. 



A. spicatum, Lam. Mountain Maple. Cool ravines and mountain wood- 

 lands ; common, 



STAPHYLEA 

 S. trifolia, L. Bladder-nut. Moist woods and thickets ; occasional. 



RHAMNACEAE. BUCKTHORN FAMILY 



CEANOTHUS 

 C. Americanus, L. New Jersey Tea. Dry woodlands ; common. 

 C. ovatus, Desf. Sandy banks of Lake Champlain, Burlington. 



RHAMNUS. Buckthorn 



R. alnifolia, L'Her. Swamps ; frequent. 



R. cathartica, L. Buckthorn. Common in cultivation and a frequent 

 escape in woods and fields. 



VITACEAE. VINE FAMILY 



AMPELOPSIS. Woodbine 



A. quinquefolia, Michx. Moist thickets ; common. 



A. quinquefolia, Michx. var. radicantissima, Rehder. Clinging closely to 

 limestone ledges. Cornwall, Brainerd; Burlington, Jones. 



