io Muhlenbergia, Volume 6 



more slender, and has fewer leaves. Although originally com- 

 pared with R. Eschscholtzii, it is a taller plant, with flowers not 

 much more than half as large, the petals and sepals much nar- 

 rower. 



According to Watson, Proc. Am. Acad. 14: 289. 1879, the 

 plant described in the Botany of the Ring Report 7, as R. alis- 

 maefolius var. montanus u is the typical subalpine form as found 

 by Geyer," while in the Synoptical Flora it is said to be "one of 

 the intermediate forms." So far this plant has not been found 

 in our collections. 



The above are the alpine and subalpine species thus far re- 

 corded from Nevada. In addition the following species occur at 

 lower elevations: 



R. Purshii Rich. App. Frankl. Journ. ed. 2, 751. 1823, is 

 said to have come originally from "wooded country from lati- 

 tude 54 to 64 north. It is a creeping plant, found in wet, 

 usually muddy places, growing in tangled masses, the leaves all 

 deeply lobed and cleft, the flowers rather small, less than a half 

 inch in diameter. We have it from two stations in Elko county, 

 Little Lakes canyon, and at the Humboldt Wells, where it 

 grows in more or less alkaline soil, the elevation 5630 feet. Nut- 

 tall, in Torrey and Gray's Flora gives this species the very ap- 

 propriate name of R. limosits. Its range is quite extensive, as 

 it occurs from Alaska on the north to Nova Scotia on the east, 

 and south in the Rocky mountains to New Mexico. 



R. eremogenes Greene, Erythea 4: 121. 1896, has been col- 

 lected in Elko county near the ruins of Fort Halleck, where it 

 was growing in mud and water in a roadside ditch, the eleva- 

 tion 5800 feet. This is closely related to R. sceleratus, an Euro- 

 pean plant extensively naturalized in the eastern states. 



A'. Macounii Britton, Trans. N. Y. Acad. 12; 3. 1892, is 

 probably common in the northern part of the state. It has been 

 collected at various places near Reno, in Paradise valley, Hum- 

 boldt county, and at Deeth, Elko county. Though related to 

 R. pennsylvanicus^ it may easily be distinguished by its globose 

 instead of oblong heads of achenes, petals longer than the sepals, 

 and the less sharply lobed leaves. The lower elongated branches 

 are often prostrate and rooting at the nodes. 



