216 
IOWA ACADEMY OF SCIENCES. 
Vagnera Adans. 
178. V. racemosa L.) Morong. ( Smilacina racemosa. 
Desf.) Common in the woods. 
174. V. stellata (L.) Morong. ( Smilacina stellata Desf.) 
Common in woods. 
Polygonatum Adans. 
175. P. commutatum (R. & S.) Diet. (P. giganteum 
Diet.) Frequent in low woods. 
Trillium L. Wake-robin. 
176. T. nivale Riddell. Very rare in the woods north 
of Estherville. 
177. T. erectum L. Rare in w T oods; Iowa Lake, and 
Armstrong Grove. Our form always has de- 
clined flowers. 
SMILACE^E. 
Smilax L. Smilax; Green-brier. 
178. S. herbacea L. Common in woods. 
179. S. hispida Muhl. Frequent in woods. 
AMARYLLIDACEiE. 
Hypoxis L. Star-grass. 
180. H. hirsuta (L.) Coville. ( H . erecta L.) Very 
common on low prairies. 
IRIDACE^E. 
Iris L. Blue Flag. 
181. I. versicolor L. Common in low ground and 
marshes. 
Sisyrinchium L. Blue-eyed Grass. 
182. S. angustifolium Mill. Very common on low 
prairies. 
ORCHIDACE^E. 
Cypripedium L. 
188. C. candidum Willd. Small White Lady-slipper. 
Frequent on low prairies. 
