FLORA OF BURLINGTON AND VICINITY 59 



STAPHYLEACEAE. BLADDER NUT FAMILY 



STAPHYLEA L. Bladder Nut 



S. trifolia L. American Bladder Nut. Moist woods and thickets; occa- 

 sional. May, June. 



ACERACEAE. MAPLE FAMILY 



ACER (Tourn.) L. Mapi,e 



A. Negundo L. Box Elder, Ash-leaved Maple. Frequent on banks of 

 the Winooski River and common in cultivation about Burlington. 

 Apr., May. 



A. pennsylvanicum L. Striped Maple, Moosewood. Rich woods; com- 

 mon. May. 



A. rubrum L. Red or Swamp Maple. Moist woods and swamps; com- 

 mon. Apr., May. 



A. sacchariuum L. White or Silver Maple. River banks; frequent. 

 Apr. 



A. saccharum Marsh. Sugar or Rock Maple. Rich woods; common. 

 Apr,, May. 



A. saccharum Marsh., var. nigrum (Michx. f.) Britton. Black Sugar 

 Maple. Occasionally planted as a shade tree in Burlington and 

 vicinity, and search will probably reveal it in the moist woodlands 

 bordering the Winooski River or Lake Champlain. May. 



A. spicatum Lam. Mountain Maple. Cool ravines; common. May, 

 June. 



SAPINDACEAE. SOAPBERRY FAMILY 



AESCULUS L. Horse-chestnut. Buckeye 



A. HippocASTANUM L. Common Horse-chestnut. Commonly planted 

 and occasionally spontaneous. May, June. 



