1 68 



SYSTEMATIC LIST OF TREES 



165. Poison Sumach 



166. Smoke Tree 



Rhus Vcrnix L. 

 Rh-us Cotiims L. 



PAGE 



122 

 121 



HOLLY FAMILY 

 167. Holly 



AQUIFOLIACEAE 

 Ilex opaca Ait. 25 



MAPLE FAMILY 



1 68. Striped Maple 



169. Mountain Maple 



170. Rock Maple, Sugar Ma- 



ple 



171. Black Rock Maple 



172. White Maple 



173. Red Maple 



174. Three-toothed Red Ma- 



ple 



175. Norway Maple 



176. Sycamore Maple 



177. Box Elder 



ACERACEAE 



Acer pcnnsyhanicnm L. 127 

 A ccr sp-i cat-um Lam. 126 



Acer saccharum Marsh. 130 



Acer saccharum v. nigruni 



(Michx. f.) Britton 132 



Acer saccharinum L. 128 



Acer rubrum L. 129 



Acer rubrum v. tridens Wood. 130 

 Acer platanoidcs L. 1 26 



Acer Pseudo-Platanus L. 127 

 Acer Ncgundo L. 126 



SOAPBERRY FAMILY 



178. Horse-chestnut 



179. Fetid Buckeye 



180. Sweet Buckeye 



181. Purple Buckeye 



182. Red Buckeye 



SAPINDACEAE 



Acsculus Hippocastanum L. 133 



Aesculus glabra Willd. 133 



Aesculus octandra Marsh. 134 

 Aesculus octandra v. hybrida 



(DC.) Sarg. 134 



Aesculus Pavia L. 134 



BUCKTHORN FAMILY RHAMNACEAE 



183. Buckthorn Rhamnus catkartica L. 26 



