lOWA ACADEMY OF SCIENCES. 
203 
JUNCACE^. 
JUNCUS. 
139. J. tenuis Willd. Fields and waste ground; abun- 
dant. 
140. J. nodosus L. Moist open ground; frequent. 
141. J. torreyi Cov. {J. nodosus meg acephalusTov.) Moist, 
open ground; frequent. 
142. J. canadensis J. Gay. Moist, open ground; com- 
mon. 
MELANTHACE^. 
Zygadenus. 
143. Z. elegans Pursh. Common in damp meadows; 
less frequently a form occurs on dry hills. 
UVULARTA. 
144. U. gy^andijloyri Smith. Woods; common. 
LILIACE^. 
Allium. 
145. A. tricoccum Ait. Deep woods; common. 
146. A. canadense L. Meadows and waste ground; 
common. 
Lilium. 
147. L. philadelphicum. Frequent in meadows. 
148. L. canadense L. Moist ‘woods and meadows; in- 
frequent. 
Erythronium. 
149. E. alhidum Nutt. Common in damp woods. 
CONVALLARIACE^. 
Asparagus. 
150. A. officinalis L. Well established and common in 
woods, meadows and waste ground. 
Yagnera. 
151. V. racemosa (L.) Morong. {Smilacina racemosa 
Desf.) Frequent in woods and thickets. 
152. V.stellata(lj.) Morong. [S . stellata Abundant 
in woods thickets and along streams. 
