cefcjferjB. 605 



Order CRUCIFER^. 

 NASTURTIUM, R. Br. 



M". sylvestpe, R. Br. Stem ascending; leaves pinnately divided into 

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

 style very short; petal? yellow, longer than the calyx. — Ne\y Orleans. 

 Introduced. 



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

 natifid, 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 tlie slender pedicel ; petals minute, 

 yellowish. — Banks of the Mississippi. 



N. limosum, 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 nearly 

 sessile." — New Orleans {NutlaV). 



CABPAMIWE, 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 (i°- 

 1J° 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 

 treadtli of the silique ; jeeds 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. 

 Galling fr). 



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

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

 length ; seeds only 8-6, orbicular, distinctly winged ; embryo as in the pre- 

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



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

 nation, appear to me to be quite distinct. 



