CRUCIFERJS. 5 



most so, and the hairs of these viscid and mostly gland- 

 tipped : small flowers very dark blue-purple, the sepals rugu- 

 lose and together with the slender-conical turgid straight 

 ascending spur rather rough-hairy : ovaries densely villous. 

 Common among oaks at Cerro, 12 July, n. 412. At first 

 glance this appears much like true D. glaucum, though the 

 leaves are much less divided than is usual in that species, 

 and the flowers are much darker ; but a lens reveals the 

 abundant short-hairiness of the foliage ; and the even 

 stronger pubescence of the rachis is of a character quite 

 peculiar. Moreover, this is a dry-land plant, whereas D. 

 glaucum, grows only in wet places. 



ACONITUM BAKERI. Stem stoutish, erect, simple and 

 rather strict, 2 feet high, the whole upper portion of the 

 plant, even to the flowers, villous hirsute with brownish 

 hairs, some of them gland-tipped : lower parts glabrous, the 

 lowest leaves 5-parted and the cuneate divisions doubly 

 about 3-cleft : raceme compact: hood f inch high, the gal- 

 eate portion rounded, scarcely higher than broad, much 

 shorter than the downward portion, the beak broadly subu- 

 late, projecting horizontally; follicles about 4, glabrous. 



At 10,000 feet near Marshall Pass, 19 July ; said to be 

 common in wet places. The only American species with 

 dense almost spicate and strict inflorescence, the sepals and 

 petals remarkably pubescent. It is the only Aconite of this 

 year's collection. 



CRUCIFER^E. 



DRABA GRAMINEA. Perennial, the much branched stems 

 3 to 5 inches high, the older portions thickly clothed with 

 long dry chaffy remains of the leaves of other seasons: 

 leaves of the season linear and grassy, almost as long as the 



