MEMOIRS OF THE NEW YORK BOTANICAI. GARDEN. 289 



As no mature fruit has been seen, the species may not belong to 

 Mtisineon, but the young fruit apparently suggests that genus. The 

 seed-face is described as being concave in the genus, but at least one 

 species, M. tenuifolmm, has this plane. Dr. Rose, to whom all my 

 umbellifers had been sent for determination, writes that the species is 

 unknown to him. It grows among rocks on the mountain tops, at 

 an altitude of 2500-3000 m. 



Montana: Bridger Mountains, June 15, 1897, Rydberg & Bes- 

 sev, 4626 (type) and 462^ (a single specimen taller and with yel- 

 lowish flowers) ; 1887, Flodman, Sqj. 



Bupleurum Americanum Coulter & Rose, Rev. N. Am. Umb. 115 ; 



Biiflciirum raniinciiloidcs Hook. Fl. Bor. Am. i : 263 [Man. R. 



M. 116] ; not L. 



On the mountains, at an altitude of 2000-3300 m. 



Montana: Lima, 1895, Rydberg, 2738; Spanish Basin, 1896, 

 Flodman, 682; Little Belt Mts., 683 and 684; Electric Peak, Aug. 

 18, 1897, Rydberg d- Bessey, 4600; Indian Creek, July 21, 43gg; 

 East Boulder, 1887, Tzveedy, 206; Mt. Blackmore, 1886, 1033, in 

 part; Tenderfoot Creek, 1890, R. S. Williams, igy ; Mill Creek, 

 18S7, 206; Smith River, 1883, Scribncr, 62; Martindale, 1882, 

 Caiiby. 

 Washingtonia longistylis (Torr.) Britt. ; Britt. & Brown, 111. Fl. 



2: 530; Mxrrhis longistylis Torr. Fl. U. S. 310; Osmorrhiza 



longistylis DC. Prod. 4: 232 [Man. R. M. 116; Coulter «& Rose, 



Rev. 118]. 



In woods, up to an altitude of 1000 m. 



Montana: Lower Falls of Missouri, 1886, R. S. Williams, 273 , 



* Washingtonia intermedia. 



Perennial, with a somewhat fleshy taproot and a short caudex ; 

 stem 4-8 dm. high, striate, sparingly villous ; leaves twice or thrice 

 ternate, the basal one with a petiole 1-2 dm. long, striate and some- 

 what villous, the lower stem-leaves short-petioled, the uppermost 

 sessile ; primary divisions with petioles 1-2 cm. long, the ultimate 

 subsessile, rhombic-ovate, acute, cleft and coarsely and acutely ser- 

 rate, the teeth ovate and mucronate ; umbel mostly 3-rayed ; rays 

 ascending, in fruit 3-7 cm. long; bracts 1-2, linear-subulate, or 

 none; umbellets 3-6-rayed ; bractlets generally none or minute; 

 fruit 10-15 mm. long, nearly straight, clavate, thickest about one- 

 fourth from the apex, tapering to both ends; style 0.75-0.8 mm. 

 long ; stylopodium ovate-conic. 



