34 H. J. Webber — 



193. EP1L0BIUM L. Willow herb. 



316. E. hornemanni Richenb. Belmont (Swezej). (E. alpinum L. of 

 Swezey'sNebr.Fl. Plants, p. 8.) Its occurrence needs confirmation, 



82. ROSACEA. 



194. POTENTILLA L. Five-finger. 



317. P. axserixa L. Silver-weed. Lewellen (Swezey). 



318. P. rivalis Nutt. var. pextandra (Engelm.) Watson. Wabash, 

 July (Williams). 



319. P. supixa L. Omaha, Lewellen (Swezey). 



195. CERCOCARPUS H. B. K. Mt. Mahogany. 



320. C. parvifolius Nutt. Rocky hills, Banner Co., Aug. A shrub 

 3-6 ft. high. Seen at a distance it gives the hills a peculiar dark 

 grayish color caused partly by the beautiful plumy tails of the 

 fruit (Rydbe rg). 



83. LEGUMINOS^E. 



196. AMPHICARPJEA Ell. 



321. A. pitcheri Torr. & Gr. Banks of Sand Creek below Wahoo, 

 Sept. (Rydberg). Woods, Ashland (Williams). 



Leaflets larger than in A. comosa; rachis villous; bracts large, 

 silky canescent; upper flowers commonly fertile (Rydberg). 



197. LATHYRUS L. 



322. L. orxatus Nutt. Differs from L. polymorphus in having linear 

 lanceolate leaves and the seed with a broad stalk and long hilum 



Pierce, Ft. Robinson (Herb. Univ. of Nebr.), Phelps Co., Fre- 

 mont (Rydberg). 



A light yellow form of L. omatus Nutt. is also sometimes found, 

 Collected by Miss H. G. Wilkenson at Gordon. Fremont (Ryd- 

 berg). 



198. ASTRAGALUS L. Rattle-weed. 



323. A. cham,eluce(?) Gray. Alliance, Lewellen (Swezey, Nebr. Flow- 

 ering Plants, p. 7). 



(The specimens differ from typical A. chamceluce in having too 

 small flowers and too many leaflets. More abundant material is 

 necessary to satisfactorily place the species. — Webber.) 



324. A. pictus Gray. var. filifolius Gray. Lewellen, rare; Alliance 

 (Swezey). Collected by Rev. Bates at Valentine (Rydberg) . 



199. PETALOSTEMON Michx. Prairie clover. 



325. P. compactus (Spreng.) Swezey. (P. macrostachyus Torr.) 

 Lewellen (Swezey). 



326. P. texuifolius Gray. "Sand draws," Deuel Co., July. 



Low, branching from below, decumbent; leaflets 1-2 pairs, 



