344 CRUCIFERAE 



N. Y. Rare and local in the Hudson Valley from Westchester Co. 



northward, but not reported from the region of the Catskills. 

 N. J. Morris and Sussex counties. 



Tertiary, o: Cretaceous, o: Older Formations not common, and 

 throughout the area most plentiful on soils derived from limestone. 

 Not south of the moraine. Sea level-1,000 ft. 138-168 days. 



7. C. bulbosa (Schreb.) B. S. P. In wet meadows and thickets: 



N. S. to Ont. and Minn., Fla. and Tex. 



Throughout the area except in the pine-barrens of N. J. and 

 south of them, there rare or wanting; unknown on L. I. 



8. C. rotundifolia Michx. In cold springs: N. J. to Ohio, N. Car. 



and Ky. 



N. J. Three miles above Delaware Water Gap, in Warren Co. very 

 rare. Its reported occurrence in Monmouth Co. is unlikely and 

 has not been unverified. 



Pa. Delaware Co. 



A rare and extremely local species whose distribution is little 

 known. 



18. Dentaria [Tourn.] L. 



Stem glabrous. 



Rootstock continuous, prominently toothed. 1. D. diphylla. 



Rootstoek interrupted by distinct constrictions. 



Rootstock elongate, composed of several fusiform or sub- 

 cylindric, distinctly toothed segments. 

 Cauline leaves with ovate or obovate petiolulate 



leaflets. 2. D. maxima. 



Cauline leaves with lanceolate, sessile leaflets. 3. D. incisifolia. 



Rootstock of readily separable, obscurely toothed fusiform 

 tubers. 4. D. heterophylla. 



Stem pubescent, at least above. 



Rootstocks of readily separable fusiform tubers; sepals 6-9 mm. 

 long. 

 Leaves 3-parted, with linear to oblong segments. 5. D. laciniata. 



Basal leaves with ovate or rhombic leaflets. 4. D. heterophylla. 



Rootstock elongate, interrupted by constrictions; sepals 3-4 



mm. long. 6- D. anomala. 



i. D. diphylla Michx. In rich woods and thickets: Eastern 

 Que. to southern Ont. and Minn., south to S. C. and Ky. 



Throughout the area except in the pine-barrens of L. I. and 

 central and southern N. J., there rare or wanting; always increas- 

 ing northward; formerly on S. I. 



