ILLUSTRATIONS. 
PLATE I. Sitanion villosum J. G. Smi th. 
H. Sita 
Page. 
Type 
anion hystrix (Nutt.) 
J. G. Smith. Photograph of Nuttall’s 
type in the Herbarium of the Philadelphia Academy of Science 
III. Sitanion brevifolium J. G. Smith. 
THEME C uoo sot 17 
IV. Sitanion anomalum J. G. Smith. Cotype 
8 
