crucifer^. 605 



Order CRUCIFER^. 

 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 tiie caijx. — New Orleans. 

 Introduceil. 



N. obtusum, Niitt. Stem short, widely branelied ; leaves oblong, pin- 

 natifi.l, the oblong or roundish lobes 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 tiic slender pedicel ; petals minute, 

 yellowish. — Banks of tiie Mississippi. 



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

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

 serrate or entire ; pedicels much shorter than the short silique ; stigma nearl}' 

 sessile." — New Orleans (NutlaU). 



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 6'- 12' high. 



C. CUrvisiliqua, Shuttlw. Stem ascending from a creeping base d^- 

 lj" 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 ajiplied to the edges of the cotyledons at the base on one 

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

 Gnttwgfr). 



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

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

 length ; seeds only 3-6, orbicular, distinctly winger. ; embryo as in the pre- 

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



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

 nation, appear to me to be quite distinct. 



