CHICKERING ON PLANTS OF DAKOTA AND MONTANA, 825 

 NAlDACEiE. 



543. Potamogeton pectinatus, L. 



1873. August. Near Turtle Mountain. 



544. Potamogeton marinus, L. ' 



1873. August. Near Turtle Mountain. 

 *545. Potamogeton natans, L. 



546. Potamogeton perfoUatus, L., var. lanceolatus. 



1874. August. Near Turtle Mountain. 

 *547. Potamogeton pusillus, L. 



ALISMACB^. 

 548. Alisma Plantago, L. 



1874. July. Frenchman's Creek. 

 *549. Triglochin maritimum, L. 

 ■•*550. Triglochin pakistre, L., var. elatum. 



551. Sagittaria variabilis, Eng. 



1873. August. Mouse Eiver. 



1874. July. Frenchman's Creek. 



OECHIDACE^. 



552. Sabenaria Jiyperhorea, E. Br. 



1874. August. Eocky Mountains. 

 *553. Hahenaria bracteata, E. Br. 

 *554. Habenaria psycodes, Gray. 

 *555. SpirantJies cernua, Eich. 

 *556. Calopogon pulcJiellus, E. Br. 

 *557. Gypripedium pubescens, Willd. 



AMAEYLLIDACE^ . 



*558. Hypoxis erecta, h. 



lEIDACE^. 

 *559. Iris versicolor, L. 

 560. SisyrincMuni Bermudiana, L., var. anceps. 



1873. July. Pembina. 

 *561. Sisyrinchium mucronatum, Mx. 



SMILACE^. 



562. Smilax herbacea, L. 



1873. July. Pembina. 



LILIACE^. 



563. Zygadenus glaueiis, Nutt. 



1873. July. Pembina. 



564. Zygadenus Nuttallii, Gray. 



1874. June. Prairie along Missouri Eiver. 



