SAPINDACEAE—THE SOAPBERRY FAMILY
This family embraces 100 genera and about 1000 species, chiefly tropical in the Old World. Six genera of trees occur in North America. The genus Aesculus, (pp. [193], [195]) comprises 14 species, 10 of which are found in America and 2 in West Virginia. No other genus of this family is represented in the flora of the State. The Horse Chestnut (Aesculus Hippocastanum, L.) is a common introduced species.