42 BULLETIN UNIVERSITY OF MONTANA 



1 dm. long, with filiform and aculeate and rigid but smootli segments about 

 2.5 mm. long. Rays about 10, unequal, 1.5-5 cm. long, stout. Slender pedi- 

 cels about 10 cm. long. Bractlets needle-like and short. Fruit about 9 mm. 

 long and half as wide, elliptical, truncate at tip and slightly emarginate at 

 base. Lateral wings not over .6 mm. wide, dorsal reduced to raised ribs and 

 with one or two of them slightly winged. Oil tubes about 5 in the intervals 

 and 14 on the commissure. Seed face concave. This is nearest to C. thap- 

 soides but the seed is twice as long and with mostly abortive wings. Alta, 

 Mont. In the canyon of the Bitter Root River among loose rocks and gravel 

 on dry knolls. July 11, 1909. 



Musenium Hookeri Nutt. Garrison. 



Bupleurum Americanum C. & R. Browning on the plains. Blankinship's 

 B. purpureum is only an alpine form. iMt. Haggin and Lima. 



Zizia cordata (Walt.) Koch. Browning. 



Carum Gairdneri CH. & A.) G-ray. Common from Alta northward. 



Cicuta bulifera L.Swan Lake in swamp on decaying logs. Lake McDonald 

 (Williams and L^mbach). 



Cicuta Douglasii (DC.) C. & R., C. vagans Greene. Browning, Ravalli. 



Cicuta Douglassi var. ocoidentalis (Greene Pitt. 2 7 as species). This is 

 the common form of the Great Plateau, with oval to elliptical fruit about 

 3 mm. long. Coulter and Rose say of this group "fruit oblong" while none 

 of them are narrower than oval or elliptical, their own figure on p. 94 being 

 oval or elliptical. In my specimens No. 1909 from Salt Lake City referred 

 here by them the fruit is from depressed-orbicular to orbicular-ovate, and 

 runs about 2 mm. long. They also say of the vagans group "fruit orbicular, 

 oil tubes very narrow" while in fact they are very broad as often as nar- 

 row. St. Ignatius Mission. 



Berula erecta (Huds.) Coville. Common all around Flathead Lake, Ronan, 

 St. Ignatius Mission. 



Sium cicutaefolium Gmel. Common in shallow water in all localities. 



Osmorhiza divaricata Nutt. Coulter and Rose in their last monograph 

 attempt to split up the species of this genus on the constriction of the tip 

 of the fruit. An extensive examination of material shows that this is falla- 

 cious and their species invalid. This species includes Washingtonia Leibergi 

 and brevipes. Leibergi forms are from MacDougal Peak and Blackfoot Gla- 

 cier in the collection under consideration. Other forms are from the East 

 Humboldt Mountains, Nevada, and Diamond Peak, Calif. My divaricata 

 forms are from Ravalli and Bigfork, ,my brevipes forms from Bigfork and 

 MacDougal Peak along with the others and growing under the same 

 conditions. 



Osmorhiza divaricata var. nuda (Torr. Pac. R. R. Rep. 4 93 as species). 

 Washingtonia nuda and obtusa. Alta and MacDougal Peak. The Alta speci- 

 mens have the leaflets of brevipes, but more acute, fJedicels and peduncles 

 very divaricate, fruit clavate, the body 10 mm. long, triangular-acute, beak 

 .5-2.5 mm. long, stylopodium mostly wider than high and minute, pedicels 

 longer than the fruit, leaflets 3-4 cm. long. Nelson's No. 4997 from Wallace 

 Creek, Wyo., has the fruit peduncles and pedicels the same but fruit nar- 

 rower and beak .5 mm. long and leaflets often 5.5 cm. long. My specimens 

 from Payette Lake, Idaho, July 24, 1899, referred by Coulter and Rose to 

 brevipes, are exactly obtusa in every particular, with the minute stylopodium 

 and triangular-acute beakless tip, it also has the divaricate peduncles and 

 pedicels. My No. 5580 from Provo, Utah, referred by them to this species 

 is too immature to tell what it is, but some of the fruit is constructed below 

 the tip like Leibergi. and with the minute depressed stylopodium. My No. 

 5893t from Marysvale, Utah, is not referred anywhere by them but is typi- 

 cal obtusa. O. nuda is readily recognized in California by the small leaves, 

 broad leaflets and slender habit with elongated internodes and peduncles, but 

 this form has both beaked and beakless fruit; when the beak is produced 

 it is referred to brevipes by Coulter and Rose. The fruit is short and witli 



