1897] NORTH AMERICAN SPECIES OF CHRYSOSPLENIUM 277 
CHRYSOSPLENIUM AMERICANUM Schwein. Hook. Fl. Bor. Am. 
£242. 1844. 
Canada and Minnesota southward. 
++ Leaves orbicular, more or less cuneate at base, strongly and 
abundantly crenate: flowers clearly pedicelled: western. 
haa sali Scouleri (Hook.) Rose. 
Chrysosple oppositifolium Scouleri Hook. F1. Bor. Amer. t: 242. 1834. 
Daicielicitanes as Esoiatiiat Nutt. in Torr. & Gr. Fl. 1:589. 1840. 
Oregon and Washington. 
U. S. National Museum. 
