194 Proceedings of the Biological Society of Washington. 



Lathyrus paucifforus utahensis, n. comb. 

 L. utahensis Jones Proc. Cal. Acad. Sci. n. ser. 2:678. 1895. 



Apparently the only character to separate this from the species is that 

 the leaflets are broader and obtuse, but mucronate as in typical pauciflorus. 



The following specimens are in the National Herbarium: 

 Utah: Ireland's Ranch, Jones No. 5441 1 (Duplicate type); 



City Creek Canon, Jones No. 1740; 



Red Rock Canon near Salt Lake City, Rydberg No. 6110; 

 Manti National Forest, J. A. Willey, June 6, 1912; 

 Near Salt Lake City, Garrett No. 229. This and the pre- 

 ceding are thin-leaved apparently shade plants. 

 Arizona: Northern end of Carrizo Mts. Standley Nos. 7383, 7409; 



the specimens in fruit. 

 Colorado: Parrott, Baker, Earle & Tracy No. 616; 



Lone Mesa, Montezuma Co., Cary No. 196; 

 Oregon: Mountains near North Pine Creek, Cusick No. 2538; 



Union County, Cusick No. 756, distributed as L. boianderi 

 Wats. 

 Washington : Walla Walla, Shear No. 1614. 



In the original description, Jones cited Ward's No. 295 from mountains 

 east of Gunnison, Colo., but the specimen of this number in the National 

 Herbarium seems clearly typical L. -pauciflorus. Cusick's No. 2538 was 

 cited under the original description of L. bradfieldianus A. Nels. 



Lathyrus pauciflorus tenuior Piper Contr. U. S. Nat. Herb. 11:378. 1906. 



L. parvifolius tenuior Piper Fl. Palouse Region 108. 1901. 

 L. tenuior Rydb. Fl. Rocky Mts. 528. 1917. 



This subspecies has linear or lance-linear leaflets, but a complete series 

 of forms connects it with the species. Here belong the following specimens : 

 Washington: Almota, Elmer No. 52 (type); 



Wenas, Griffiths & Cotton No. 86; 



Wenache Mts., Griffiths & Cotton No. 129; 



Horse Lake west of Wenache, Whited No. 1107; 



Without locality, G. R. Vasey No. 258. 

 Oregon: Blue Mts., Sheldon No. 153; 



Lost Prairie, Wallowa County, Cusick No. 2408; 



Cottonwood Creek, Lake County, Eggleston No. 7108; 



Rock Creek, Morrow County, Leiberg No. 77; 



Ochoco National Forest, Ingram May 10, 1912. 

 Idaho: Little Potlatch River, Sandberg, Heller & MacDougal 



No. 383. 



Lathyrus pauciflorus schaffneri, n. comb. 



L. parvifolius Wats. Proc. Am. Acad. 17:345. 1882. Not Roth 1797. 

 L. schaffneri Rydb. Mem. N. Y. Bot. Gard. 1:258. 1900. 



The original specimen on which L. parvifolius Wats, is based was col- 



