26 CRUCIFER^:. (MUSTARD FAMILY.) 



* * Annuals. 



3. C. spathulata, Michx. "Radical leaves petiolate, spathulate, entire, 

 pubescent with branching hairs ; stem-leaves linear Stem decumbent, silique 

 linear, straight, spreading and slightly reflexcd, pointed with the sessile stigma." 

 (DC.) High mountains of Carolina (Michaux). ( *) 



4. C. Ludoviciana, Hook. Low; stems branching and hairy at the 

 base; leaves lanceolate, pinnatifid with numerous oblong or linear sparingly 

 toothed lobes, those of the root tufted ; silique broadly linear, erect-spreading, 

 pointed with the sessile stigma ; seeds orbicular, margined. Waste places near 

 dwellings, Florida to North Carolina and westward. March and April. Stems 

 4' -6' high. Flowers small, white. 



5. C. hirsuta, L. Smooth or hairy ; stem erect ( 1 - 2 high), branching ; 

 leaves pinnatifid, with numerous oval or oblong sparingly toothed lobes, those 

 of the upper leaves linear and entire ; silique narrow-linear, erect, pointed with 

 the nearly sessile stigma; seeds oval, minute, marginless. Var. VIRGINICA. 

 (C. Virginica, Michx.) Smaller (6' -10' high); lobes of the leaves linear or 

 filiform. Wet (the variety in dry) soil, Florida and northward. March and 

 April. Flowers small, white. 



4. DENT ARIA, L. TOOTHWORT. 



Silique lanceolate, flattened. Seeds ovate, disposed in a single row in each 

 cell, on flattened stalks, not margined. Perennial herbs, wkh creeping fleshy 

 roots, and simple stems, bearing at the summit 2-3 palmately-divided leaves, 

 and a single raceme of large white or purple flowers. Radical leaves on long 

 petioles. 



1. D. diphylla, Michx. Root not jointed ; stem-leaves 2, opposite or near- 

 ly so, ternately divided; leaflets ovate or ovate-lanceolate, coarsely toothed; 

 those of the root similar ; racemes many-flowered, longer than the leaves ; flow- 

 ers white. Rich shady woods, along the mountains and northward. April. 

 Stem 8' -12' high. Root pungent. 



2. D. laciniata, Muhl. Root jointed ; stem-leaves mostly 3, whorled, 

 ternately divided; leaflets lanceolate or linear, lobed and toothed; the lateral 

 ones 2-paited j those of the root similar or sometimes wanting ; racemes few - 

 many-flowered, often shorter than the leaves ; flowers white or pale purple. 

 Banks of rivers in shady places, Florida and northward. Feb. - April. Stem 

 4' -12' high. 



3. D. heterophylla, Nutt. Root jointed; stem -leaves 2, small, opposite, 

 3-parted ; leaflets linear, toothed or entire ; root-leaves ternate, with large ovate 

 crenately-lobed and toothed leaflets ; racemes few-flowered ; flowers rather small, 

 purple. Shady woods, North Carolina and northward. April. Stem 6' - 12' 

 high. 



4. IX multifida, Muhl. Root tuberous ; stem-leaves mostly 3, whorled, 

 2 - 3-ternately divided into very narrow segments ; flowers white. Shady woods 

 in the upper districts, Alabama and northward. Stems 6' - 8' high. Leaves 

 often as finely divided as those of the Carrot, sometimes approaching some of 

 the forms of No, 2, but with smaller flowers, and longer petioles and pedicels. 



