l894-] PLANTS OF MONROE COUNTY. 55 



SAPINDACE^E. 



85. ACER Tourn. [L.] 



176. A. Pennsylvanicum L. Striped Maple. 



Rare. Seneca park, C. C. Laney. Webster, M . S. Baxter. Bank 

 of Sodus bay and at Lake Bluff, F. Williams in check list E. L. Hankenson. 



177. A. spicatum Lam. Mountain Maple. 



Banks of Genesee river and ravine sides ; frequent. 



178. A. saccharinum Wang. [A. Saccharum Marsh.] Sugar Maple. 



Woods, river banks and ravines ; one of the most common of our 

 forest trees. 



179. A. saccharinum Wang. var. nigrum Torr. & Gr. [A. nigrum Michx. f.] 



Black Sugar Maple. 

 Not uncommon ; frequently planted for street shade tree. 



180. A. dasycarpum Ehrh. {A. saccharinum L.] White or Silver Maple. 



River banks and ravine sides, low woods and along streams ; common. 



181. A. rubrum L. Red or Swamp Maple. 



Common in swamps and low woods ; frequent on the banks of the 

 Genesee river and in ravines. 



86. NEGUNDO Moench. 



182. N. aceroides Mcench. [Acer Negundo L.] Box-Elder. 



Rare. Bank of Genesee river, near Ballentine bridge, in the town of 

 Chili, M . S. Baxter and C. C . Laney. Two large specimens, eighteen 

 inches in diameter, in the town of Caledonia, Livingston county, a mile 

 south of the N. Y. C. railroad bridge, C. C. Laney and John Dunbar. 



87. STAPHYLEA L. 



183. S. trifolia L. American Bladder Nut. 



Copses, thickets ; scarce. Chili, Dr. Booth . Riga, Miss Beckwith. 

 Pittsford, Dr. Searing. Henrietta, G . T. Fish. Wayne county. 



ANACARDIACE.E. 



88. RHUS L. 



184. R. typhina L. [R. hirta (L.) Sudw.] Stagshorn Sumac. 



Rocky river banks, ravines, hillsides ; common. 



185. R. glabra L. Smooth Sumac. 



In situations similar to the preceding, but less frequent. 



186. R. copallina L. Dwarf Sumac. 



Rare. Bushnell's basin, M . S . Baxter. L. Holzer. Prof. Lennon . 



187. R. venenata DC. [B . Vernix L . ] Poison Sumac. 



Swamps; frequent. 



188. R. Toxicodendron L. [B . rarficans L .] Poison Ivy. Poison Oak. 



Woods, banks of streams, waysides, fences ; common. 



189. R. Canadensis Marsh. {B. aromatica Ait.) [B . aromatica Ait.] 



Rare. Bank of Genesee river, foot of Ambrose street, Rochester, 

 Fuller. Canandaigua Lake, Miss M. F. Macau ley. Wayne county. 



