196 Proceedings of the Biological Society of Washington. 



connective yellow; style slightly exceeding the stamens; capsules not 

 seen . 



Type in the U. S. National Herbarium, No. 692,082, collected in 

 crevices of a cliff wet by trickling water, Capnlin Canyon, Sandia Moun- 

 tains, New Mexico, by Miss Charlotte C. Ellis (No. 330). 



The only Rocky Mountain species to which this is allied is D. multi- 

 florum Rydb., ranging in Colorado and Wyoming. That, however, is a 

 much larger plant, with narrow, sinuate-denticulate leaves, long bracts, 

 numerous flowers, narrow calyx lobes, and bluish violet petals. In the 

 monograph of the genus by Pax and Knuth in Engler's Pflanzenreich,* 

 following the key, the New Mexican plant would run to D. latilobum (A. 

 Gray) Elmer. That species is restricted to Washington and Oregon and 

 is at once distinguished from the one described here by the very large, 

 broad, dentate-crenate leaves. 



*22: 234-246. 1905. 



