CALIFORNIAN BOX ELDER. 
Plate LXXII. 
91 
A branch of the natural size in fruit, a. The male flowers. 
Box Elder, ( Negundo aceroides .) This tree, on the low 
alluvial borders of rivers, extends much farther to the north 
than was supposed by Michaux. Richardson, Drummond, 
and Douglas, found it to be abundant about the Red River 
and Saskatchawan, which latter river, (in latitude 54°,) is 
its most northern limit. It also occurs on the western 
banks of the Missouri, and those of the streams which 
enter it from the West. It likewise extends into the inte- 
rior of Arkansas, and for some distance on the borders of 
the Platte. According to Douglas, the Crow Indians manu- 
facture Sugar from its sap, but it is not near as saccharine 
as that of the Sugar Maple. 
