247 



widely separated stations, viz., near Lima, in Beaverhead County, 

 no, 2663, and in Bozeman Canon in Gallatin County, no. 2664. 

 It resembles a depauperate C. Breweri, but differs in the much 

 thicker and more angular toothed leaves. The latter species is 

 very common in Montana. 



Lesquerella alpina (Nutt.) Wats. Proc. Am. Acad. 23 : 254 



1888. 



Vesicaria alpina Nutt; T. & G. Fl. N. Am. i : 102. 1838. 



The true L. alpina has been found by me at the following sta- 

 tions : Lima, no. 2666 ; Melrose, no. 2667, both in 1895. Most 

 of the specimens named L. alpina in the herbaria belong to L. 

 spatJmlata Rydberg. 



Draba densifolia Nutt.; Torr. & Gray, Fl. N. Am. i: 104. 1838. 



D. glacialis \z.x. pectinata Wats. Proc. Am. Acad. 23: 260. 



It is very doubtful if this is a variety of D. glacialis. The more 

 tufted habit, the more flattened, more hairy and {q\n- (4-6) seeded 

 pod may well give it the rank of a species. Under all circum- 

 stances the name de7isifolia is much older than Watson's name and 

 should not be suppressed. Mr. Flodman's specimens from the 

 Little Elk Mountains, Aug. 10, 1895, no. 499, are nearly identi- 

 cal with Nuttall's type in the Torrey herbarium. It was also col- 

 lected by the author at Silver Bow in 1895, no. 2669. 



Draba oligospekma Hook. Fl. Bor. Am. i: 51. 1830. 



This has been merged into D. glacialis, and yet has still more 

 right to a specific rank. It has a very slender flowering and 

 fruiting stem, much smaller leaves, and a pod that is not half the 

 size and with only 2-4 seeds. It was collected growing with the 

 preceding. Flodman, no. 488. Also collected by the author 

 on a mountain near Lima in 1895, no. 2668. 



Therofon heucheraeforme. 



Saxifraga JaniesiiWooV.YX.ViOX. P\x^. i\ /ig. 1833. Not Torr. 



Caespitose with a thick scaly caudex, glandular-hirsute, 1-2 

 dm. high ; basal leaves round-reniform, deeply and often doubly 

 crenate, on petioles about ^ dm. long ; raceme simple or some- 

 what compound; calyx campanulate or turbinate, tinged with 

 purple; sepals ovate, erect ; petals obovate-oblanceolate or oblong- 



