CRUCIFEI^E. 



605 



Order CRUCIFER^E. 



NASTURTIUM, R. Br. 



N. sylvestre, R- Br. Stem ascending; leaves pinnately divided into 

 narrow toothed lobes ; silique linear, mostly shorter than the slender pedicel; 

 style very short; petals yellow, longer than the calyx. — New Orleans. 

 Introduced. 



N. obtusum, Nutt. Stem short, widely branched ; leaves oblong, pin- 

 nntifi.l, the oblong or roundish lohes sparingly toothed; racemes barely as 

 long as the leaves, minutely many -flowered ; silique oblong, obtuse, or 

 pointed by the short style, twice as long as the slender pedicel ; petals minute, 

 yellowish. — Banks of the Mississippi. 



N. limosum, Nutt. "Very smooth; leaves lanceolate, laciniately pin- 

 natificl towards the base, nearly entire above, or angularly toothed, the lobes 

 serrate or entire ; pedicels much shorter than the short silique ; stigma nearly 

 sessile." — New Orleans (Nuttoll). 



CARD AMINE, L 



C. Clematitis, Shuttlw. Smooth; earliest leaves reniform, nearly entire; 

 lower stem leaves broadly 3-lobed, the middle lobe larger, reniform-cordate, 

 or angularly 3-lobed; upper ones oblong, 3-lobed ; petioles with an arrow- 

 shaped appendage at the base; racemes short, loose; petals white, twice as 

 long as the calyx ; silique narrow-linear, compressed, tipped with the long 

 style. — Moist banks, Mountains of North Carolina and Tennessee. June. — 

 Stem O'-l-J high. 



C. curvisiliqua, Shuttlw. Stem ascending from a creeping base (J°- 

 1^° high), smooth, soon branching; leaves pinnately divided into 3-8 oval 

 or obovate wavy-margined lobes, rarely entire, the lobes of the upper ones 

 narrower and sometimes toothed; petals white", spatulate-obovate, twice as 

 long as the sepals ; style short ; silique filiform, terete, incurved ; seeds oval 

 or roundish. — Margins of ponds, &c, St. Marks (Rugel). East Florida 

 (Garber). 



LEAVENWORTHIA, Torr. 



L. torulosa, Gray. Silique linear, torose ; style fully equalling the 

 breadth of the silique ; seeds broadly oval, narrowly winged ; radicle nearly 

 transverse, strictly applied to the edges of the cotyledons at the base on one 

 side; petals purplish with a yellow base.— Cedar barrens, Tennessee (Dr. 



Gattinyr). 



L. Stylosa, Gray. Slender, strictly stemless ; silique oval or broadly 

 oblong (4" long), plane, surmounted by a slender style of fully 2 lines in 

 lenpth ; seeds only 3-0, orbicular, distinctly winger. ; embryo as in the pre- 

 ceding; petals pure golden yellow. — With the preceeding. 



The above-described species, submitted by Dr. Gray for future determi- 

 nation, appear to me to be quite distinct. 



