8o Wyojuing Experivient Station. 



BERBERIDACE^. 



Berberis Repens, Lindl. Bot. Reg. t. 1176 (1828). 



Common among the rocks in hilly regions. Laramie Hills, May 

 25, 1894 (No. 66); Centennial Hills, August 1895. 



NYMPHiEACE^. 



Nuphar polysepalum, Engelm. Trans. St. Louis Acad, ii, 283 (1865). 

 Nymphcea polysepala, (Engelm.) Greene. 



Sub-alpine ponds and lakes, not common. 



Medicine Bow Mountains, by Col. S. W. Downey; Union Pass, 

 August 14, 1894 (No. 898). YeUoxo Pond Lily. 



PAPAVERACE^. 



Argemone platyceras. Link & Otto, Icon, i, 85. t, 43 (1828). Arge- 

 moiie albiflora, Hornem. 



Common on the eastern slopes of the Laramie Hills. 



Chugwater Station, B. C. Buffum, July 14, 1891; Sybille Hills, 

 July 8, 1894 (No. 314); Table Mountain, July i, 1895 (No. 1363). 

 Poppy. 



FUMARIACE^. 



Corydalis aurea, Willd. Enum 740 (1809). Capnoides aureton, (Willd) 

 Kuntze. 



This and the following occurs frequently in dry sandy ravines 

 and on the adjoining hillsides. 



Centennial Valley, August 19, 1895 (No. 1679). 

 Corydalis aurea occidentalis, Engelm. 



The variety is far more common than the species. 

 Telephone Canon, June 3, 1894 (No. 118); Laramie, June 5, 

 1895 (No. 1 24 1). 



CRUCIFER^. 



Nasturtium obtusum, Nutt. T. & G. Fl. N. A. i, 74 (1838). Roripa 

 obtusa (Nutt.) Britton. 



L'sually found growing in spray of minature waterfalls. 



East Fork, August 25, 1894 (No. 11 16); Pole Creek, July 2, 1895 

 (No. 141 5). 



