Vesicahia. CRUCIFERiE. 101 



2. V. Ludoviciana (DC): canescent with a stellate pubescence; radi- 

 cal leaves spatulate, entire, obtuse ; cauline linear; style slender, longer ilian 

 the ovary, and nearly as long as the obovate-globosc silicle. — DC. syst. 2. p. 

 297. Alyssuni Ludovicianum, i\«<^. / gen.2.pQ3. Myagruin argenteum, 

 Pursh, fi. 2. p. 434. 



Rocky hills of the Missouri and Platte, NiiUall, Dr. Jamrs ! N. W. 

 Coast, Dous:la.<i. April- June. — 1| Stem 6-8 inches high, simple, or some- 

 what branched above. Leaves about an inch long. Flowers golden-yellow. 

 Petals obovate. Silicle smaller than in the preceding species, nearly smooth 

 when old. 



3. V. grandijlora {Yiodk) ; canescent with a steUate pubescence; leaves 

 sessile, cuneate-oblong, sinuately toothed ; siUcle globose, glabrous ; style 

 about two-thirds the length of the silicle ; petals obcordate, twice as long as 

 the calyx ; stamens thickened at the base. — Hook. bot. mag. t. 3464 ; D. 

 Don in Brit.jl. gard. (.ser. 2.) t. 401. 



0. pallida : stem sparingly pubescent ; leaves narrowed at the base, rather 

 coarsely toothed ; flowers almost white ; silicle globose. 



Texas. Drummoiid! P. Small prairies near St. Augustine, Texas, Dr. Lea- 

 venworlh ! — (l) Stem slender, decumbent, much branched, about a foot 

 long. Leaves an inch in length. Calyx copiously hairy : sepals elliptical- 

 oblong. Ovary spherical, scarcely stipulate ; septum veinless : ovules 6 in 

 each fell. D. Don. — We do not recognise this species among our Texan 

 specimens collected by Drummond, kindly sent us by Sir William Hooker ; 

 but our var. /?. agrees so nearly with the description and figure of Don, 

 that we cannot regard it as specifically distinct. 



4. V. repanda (Nutt. ! mss.) : stem minutely and sparingly pubescent, 

 decumbent ; leaves linear-oblong or nearly linear, ahnost glabrous, narrowed 

 at the base, repand, obtuse ; silicle obovate-globose, on a short stipe ; style 

 about two-thirds as long as the silicle; stigma capitate; petals obovate, 

 twice the length of the calyx ; filaments subulate. 



Banks of the Red River, Arkansas, Dr. Pitcher ! — Stem a foot or more 

 in length, branching from the base, rather stout and angular, the upper part 

 sparingly pubescent. Leaves li-2i inches long ; the upper ones slightly 

 repand-denticulate, with a few minute appressed stellate hairs on both sur- 

 faces. Pedicels an inch long, spreading. Sepals linear- oblong. Petals 3-4 

 lines long, Avith distinct claws. Ovary obovate-oblong: each cell with 6-8 

 ovules. Silicle 2 lines long, on a distinct pedicel : style rather slender : stig- 

 ma conspicuous. 



5. V. angustifolia (Nutt.! mss.) : canescently and stellatcly pubescent : 

 radical leaves lyrately pinnatifid or repandly toothed, oblong, attenuated at 

 the base ; cauline linear, entire, or repand ; silicle globose, glabrous, nearly 

 sessile ; style filiform, rather shorter than the silicle ; petals obovate-oblong, 

 twice the length of the ovate sepals ; filaments subulate, dilated at the base. 



Prairies of Arkansas and Red River, Nutt all! Dr. Leavenicorth ! April. 

 — (T) Stems several from one root, about a foot high. Radical leaves taper- 

 ing at the base into a long petiole ; cauline ones about a line Avide. Raceme 

 not much elongated in fruit. Seeds mostly abortive, few in each cell : funi- 

 culi adhering to the septum at the base. 



6. V. Nnttallii : somewhat pubescent, branched from the base and procum- 

 bent; leaves lanceolate-oblong, obtusely repand-dentate or almost entire ; 

 silicle pyriform-subglobose, somewhat stipitate, glabrous ; style two-thirds as 

 long as the silicle ; petals obovate ; filaments dilated at the base. 



Prairies of Red River, Arkansas, Nnttall ! Dr. Leavenworth ! — (J) Stem 

 12-18 inches long. Leaves an inch or more in length, narrowed at the base. 

 Racemes much elongated in fruit : pedicels nearly an inch long, spreading 

 or somewhat recurved. Flowers bright yelloAV. Silicle 2 lines long, a little 



