62G Heller: Tlaxts from Western North America 



kindness of Dr. Trelease, I have had the privilege of examining 

 the two sheets of Fendler's no. 43, preserved there. Although 

 averse to the characterizing of varieties, the best way of treating 

 this form seems to be to describe it as a variety. 



Draba Neo-Mexicana robusta var. no v. 



Multicipitall) 



D 



but with stouter, more pubescent, curved stems, branched above : 

 leaves more numerous and larger. The t)'pe in Fendler's no. 43, 

 as represented in the George Kngelmami Herbarium at the Mis- 

 souri Botanical Garden. 



Draba pallida sp. no v. 



Biennial, or perhaps perennial, somewhat multicipitally 

 branched, cmereous throughout: stems 4 dm. high, begiiming to 

 branch near the base, the branches ascending, densely pubescent 

 below with mostly forked hairs, these gradually becoming fewer 

 on the upper parts of the stem, and entirely wanting near the 

 summit : leaves thick and firm, all roughened with a dense short 

 stellate pubescence, the basal ones spatulate, clustered in rosettes' 

 entire, about 15 mm. long. 4 mm. wide, tapering into a petiole' 

 those of the stem oblanceolate, 2-3 cm. long, 5-7 mm. wide, ses- 

 sile, acute, serrate m the upper half with sharp spreading teeth or 

 the upper reduced ones nearly entire : Howers apparently creamy 

 or white : pedicels slender, strongly divaricate, slightly pubescent 

 about 5 mm. long: pod equalling or exceeding the pedicel' 

 twisted, glabrous, tipped with a slender style 2 mm. long. 



Dr. H. H. Ru.sby's no. 18, as represented in the herbarium of 

 Columbia University. It was collected on '' shady hillsides, Mo- 

 gollon Mountains, New Mexico, August, 1881." 



Draba rubricaulis sp. no v. 



^ Apparently annual: stem 4 dm. high, slender, purplish 

 branched from near the base, the branches erect, hirsute belovv 

 with spreading hairs, glabrous above : leaves {fi\N, mostly below 

 the branches, thin, light green, sessile, oblong, obtuse, or the 

 smaller upper ones lanceolate, acute, dotted with very short ap- 

 pi-essed hairs, the veins shortly hirsute, the margin ciliate the 

 larger ones 3-4 cm. long, i cm. wide : branches peduncle-like 

 subtended by a leaf, naked, or provided with a few short lanceo- 

 late bracts about 5 mm. long, the peduncle part 5-10 cm lon^ 

 thjs longer than the flowering portion on the lower branches one 

 third shorter on the upper ones : pedicels divaricate, slender glab- 





