26 H. J. Webber — 



55. LILIACE.E. 



140. CALOCHORTUS Pursh. 



229. C. xuttallii Torr. & Gr. Along sides of canons. Pine Ridge, 

 June (Williams). 



141. FRIT1LLARIA L. 



230. F. atropurpurea Nutt. Along sides of canons. War Bonnet, 

 June (Williams). 



142. POLYGONATUM Adans. Solomon's seal. 



231. P. biflorum (Walt.) Ell. Cass Co (Williams). 



143. SMILAX L. Greenbrier, Catbrier. 



l'32. S. herbacea L. var puberulexta Gray. Woodlands, War 

 Bonnet, June (Williams). 



5Q. IRIDACEJ3. 



144. IRIS L. Iris, Flag. 



233. I. versicolor L. Common Blue-flag. Edges of ponds, etc., 

 common. Nebraska City, June (Webber). 



57. PONTEDERIAOE.E. 



145. HETERAXTHERA Ruiz & Pav. Mud plantain. 



234.. H. limosa Vahl. In ponds, common. Lincoln and Fairmont 

 (Bessey). Mincleu (Hapeman). 



58. ORCHIDACE^E. 



146. HABEXARIA Willd. Rein orchis. 



235. H. bracteata (Willd.) R. Br. Moist places, common. War 

 Bonnet, June (Williams). 



147. SPIRANTHES L. Ladies' tresses. 



33G. S. cernua (L.) Rich. Sand flats, on islands of the Platte River 

 near Ashland. Sept. (Williams). 



148. CORALLORHIZA R. Br. Coral root. 



237. C. ixxata R. Br. Damp dark woods in canon. War Bonnet, 

 June (Williams). 



238. C. multiflora Xutt. More common than the preceding species. 

 Same locality (Williams). 



59. CUPULIFER.E. 



149. BETULA L. Birch. 



239. B. papyrifera Marshall. Paper or Canoe birch, White 

 birch. On the north slopes of the. bluffs of the Niobrara River 

 near Valentine (Bessey). 



