30 SILVA OF NORTH AMERICA. LEGUMINOS. 
The wood of some species is hard and close-grained and affords valuable fuel. The genus is not 
known to possess other useful properties. 
The generic name commemorates the botanical labors of Karl Wilhelm Eysenhardt,' professor of 
botany in the University of Konigsberg. 
1 Karl Wilhelm Eysenhardt (1794-1825), a native of Berlin, gave promise in a number of scientific papers of a brilliant career 
closed by death almost at its beginning. 
