CATALOGUE. 15 



Columbia, and by Menzies and Brewer in California. Frequent on the 

 mountain ranges of Western Nevada, at an elevation of 6-7,000 feet ; 

 April-June. (55.) 



Nasturtium officinale, Br. *In ditches and streams near Salt Lake 

 City ; doubtless introduced. (56.) 



Nasturtium sinuatum, Nutt. River banks, Missouri to Arkansas, North- 

 ern New Mexico and Arizona, and in Oregon. West Humboldt Mountains and 

 Holmes' Creek Valley, Nevada ; 5-6,000 feet altitude; September. (57.) 



Nasturtium lyratum, Nutt. Erect, diffusely branched, glabrous, 6-10' 

 high ; leaves lyrate-pinnatifid or lyrate, the segments oblong-lanceolate or ob- 

 long, incisely serrate, angularly toothed or entire ; racemes panicled, with small 

 flowers ; siliques linear, compressed, more than twice longer than the pedicel, 

 somewhat spreading, abrupt at the apex ; style very short. — The pods in 

 these specimens are nearly terete, 3-6" long, on short (1-2") pedicels. It is 

 occasionally nearly prostrate, and seems to approach the following species. 

 Truckee and Groose Creek Valleys, Nevada; 4,200-5,000 feet altitude; 

 July-September. Found by Nuttall on the banks of the Columbia. (58.) 



Nasturtium obtusum, Nutt. Nearly the ordinary form, with oval or 

 ovate-lanceolate pods, 2-3" in length. The leaves are variable in the lobing 

 and serratures, the lateral leaflets in some specimens being nearly obsolete ; 

 racemes much elongated in fruit. Banks of the Mississippi and westward. 

 New Mexico, Colorado, and California; Smoky Valley and in the East 

 Humboldt^ Mountains, Nevada, and in the Wahsatch, Utah ; 6-7,000 feet 

 altitude ; June-August. (59.) 



Var. (?) alpinum. Dwarf; leaves oblong, entire or with a few teeth, or 

 coarsely lyrate-pinnatifid ; lobes oblong ; pods mostly shorter than the pedi- 

 cels. Uinta Mountains, Utah, at head of Bear River Canon; 10-11,000 

 feet; August. (60.) 



Nasturtum palustre, D C. Grlabrous ; pods oblong, 4-6" long ; the 

 rarer typical form. Truckee Valley, Nevada ; July. (61.) 



Var. HISPIDUM, Gray. The more frequent form. The species extends 

 from Arctic America to Northern Mexico, Louisiana, and North Carolina. 

 Found in the Goose Creek and Jordan Valleys, and in the Wahsatch Mount- 

 ains, Utah ; 4,500-6,000 feet altitude ; May-September. (62.) 



Var. With the oval pods of the last, but truncate and the style extremely 



