l894-] PLANTS OF MONROE COUNTY. 55 



SAPINDACE^. 



85. ACER Tourn. [L.l 



176. A. Pennsylvanicum L. Striped Maple. 



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

 of Sodus bay and at Lake Bluflf.i^. IVilliavis in check list E.L. Hankcnson. 



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. 

 I7g. A. saccharinum Wang. var. nigrum Torr. & Gr. \^A. nigrum Michx. f.j 

 Black Sugar Maple. 



Not uncommon ; frequently planted for street shade tree. 



180. A. dasycarpum Ehrh. \^A. saccharinum \.?\ 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 Moench. [Acer Negwtdo 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. Lancy and John Dunbar. 



87. STAPH VLEA l. 



183. S. trifolia L. American Bladder Nut. 



Copses, thickets ; scarce. Chili, Dr. Booth . Riga, ATiss 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, iM . S. Baxter. L. Holzer. Prof. Lcnnoii . 



187. R. venenata DC. YR.Vernix L.] Poison Sumac. 



Swamps; frequent. 



188. R. Toxicodendron L. [R . radicans L.] Poison Ivy. Poison Oak. 



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



189. R. Canadensis Marsh. {R. aromatica Ait.) [/?. aromatica Ait.] 



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

 Fuller. Canandaigua Lake, Miss M . E. Macaiiley. Wayne county. 



