Rydberg : Rocky Mountain flora 427 



Lepidium Crandallii sp. no v. 

 L. Joncsii Rydb. Bull. Ag. Ex. Sta. Colo. lOO : 152, in part. igo6. 

 L. Eashvoodiac Rydb. /. c. in part. 



Perennial ; stems several, branched and leafy throughout, 

 glabrous or puberulent above, 3-5 dm. high ; basal leaves and 

 lower stem-leaves pinnatifid, 5—7 cm. long, glabrous, with ob- 

 lanceolate or oblong, entire or slightly toothed divisions ; upper 

 stem-leaves, especially those of the branches, oblanceolate or 

 linear, entire or toothed ; sepals oblong, nearly 2 mm. long, white- 

 margined ; petals clawed, about 3 mm. long, white, their blades 

 obovate ; stamens 6; fruiting racemes 5 — 10 cm. long; pedicels 

 divergent ; pods oval or ovate, about 4 mm. long, glabrous, slightly 

 wing-margined above ; style i mm. long, about twice as long as 

 the wing-margin. 



This species is related to the two species to which it has been 

 referred and to L. allyssoidcs. From the latter and L. Eashvoodiac 

 it differs in the more commonly dissected stem-leaves, the broader 

 and shorter segments of the leaves and the comparatively longer 

 style. From L. Joncsii it differs in the broader leaf-segments, 

 thinner leaves, and more branched habit. From L. scopitlonim it 

 differs in the less woody base, the branched and leafy stem, thinner 

 leaves and shorter styles. 



Colorado: Palisades, May 14, 1898, Crandall ij i (type in 

 herb. N. Y. Bot. Card.); Glenwood Springs, 1902, OstcrJiout 2^C)g ; 



Lepidium brachybotryum sp. nov. 



Biennial or perennial with a tap-root; stem 2-3 dm. high, 

 branched, puberulent throughout ; basal leaves puberulent, bipin- 

 natifid, about 5 cm. long, with elliptic or obovate lobes ; stem- 

 leaves oblanceolate, pinnatifid or toothed ; sepals oblong, about i 

 mm. long, white-margined ; petals white, clawed, 2 mm. long, their 

 blades broadly obovate ; stamens 6 ; fruiting racemes short, 2-5 

 cm. long ; pedicels divergent, 5-7 mm. long ; pod rounded-ovate, 

 3 mm. long, 2.5 mm. wide, wing-margined above ; styles less than 

 0.5 mm. long, scarcely exceeding the wing-margins. 



This is related to L. monta}iiim but differs in the short style, 

 more rounded pods, and short racemes. It grows on sage-brush 

 flats. 



Utah : Juab, 1902, Goodding loy^ (type in herb. N. Y. Bot. 

 Gard.) ; Wasatch County, near Midway, Carlton & Garrett 6/28 

 (poor specimen doubtfully referred here). 



