84 
IOWA ACADEMY OF SCIENCES 
SMILACEAE. 
Smilax. 
204. 8. Tierhacea L. Plenty in woods. 
205. 8, ecirrhata (Engelm) S. Wats. Plenty in woods. 
206. 8. rotundifoUa L. Common along streams and in woods. 
207. 8. hispida Muhl. In thickets. 
AMARYLLIDACEAE. 
Hypoxis. 
208. H. hirsuta (L.) Coville. Abundant, not only in dry soil but in 
marshy meadow^s as well. 
DIOSCOEEACEAE. 
Dioscoeea. 
209. jD. villosa L. Plenty in thickets. 
IRIDACEAE. 
Ieis. 
210. I. versicolor L. Abundant in swamps and marshes. 
SiSYRINCHIUM. 
211. 8. angustifolium Miller. Abundant in fields and meadows. 
ORCHIDACEAE. 
Cypripedium. 
212. C. candidum Willd. Scarce in meadows; formerly abundant. 
213. G. hirsutum Mill. Scarce in woods. Occasionally very large 
plants over 1 m. have been noted. 
Galeoechis. 
214. G. spectaMlis (L) Rydb. Rare in rich woods. (Orchis specta- 
hilis L.) 
COELOGLOSSUM. 
2157"’ C. hracteatum (Willd.) Pari. Rare in woods and meadows. 
(Hahenaria hracteata (Willd.) R. Br.) 
Blephariglottis. 
216. B. leucophaca (Nutt.) Rydb. Plenty on open prairie. (Hahc- 
naria leucophaca (Nutt.) Gray.) 
Gyrostachys. 
217. G. cer7iua (L.) Kuntze. Plenty in moist meadows. Ours is a 
very stout form and selaom over 4 dm. high. 
SALICACEAE. 
POPULXTS. 
218. P. alba L. Rather scarce. 
219. P. balsamifera L. Scarce. 
220. P. dilatata Ait. Escaped from cultivation. 
221. P. deltoides Marsh. Plenty. 
222. P. grandidentata Michx. .. 
223. P. tremuloides Michx. Plenty. 
