154 CRUCIFERAE 



3. Cardamlne arenioola Britton. Sand BiTTER-CRESS. ( Man. p. 454 ; 

 I. 'P-f. 1727-) In moist or wet sandy soil, Conn, to Fla., Ky. and Tenn. 

 — Pennsylvania : I/ANCASTER, Safe Harbor. 



4. Cardamine parviflora I,. Smai,i,-Fi,owerED Bitter-Cress. (Man. 

 p. 454 ; I. F.y. 1728.) On dry rocks, Quebec to western Ont. and Oregon, 

 and in the AUeghenies to Ga. Also in northern Eu. and Asia. — Penn- 

 sylvania : Monroe ; Northampton ; Bucks. 



5. Cardamine flexuosa WITH. Wood Bitter-cress- (Man. p. 454 ; 

 I. F. /. 1729- ) In wet woods, streams and mountain swamps, Me. to 

 Mich., N. C. especially in the mountains. Also in Eu. and Asia, and ap- 

 parently in Wash. — Pennsylvania : Monroe ; Northampton ; Bucks ; 

 Somerset. 



6. Cardamine purpurea (Torr.) Britton. Purple CrESS. (Man. p. 

 455 ; I. F.y. 1732.') In cold springy places, Quebec and arctic Am. to the 

 Canadian Rocky Mts., south to Md. and Wis. — Pennsylvania: York; 

 Frankun ; Huntingdon ; Ai,legheny. 



7. Cardamine bulbosa (Schreb.) B.S. P. Bulbous CRESS. (Man_p. 

 455 ; I. F./; I733-) In wet meadows and thickets, N. S. to Minn., Fla. 

 and Tex. — Pennsylvania : Monroe ; Northampton ; Wyoming ; Bucks ; 

 Delaware ; Chester. ; Lancaster ; Mercer ; Allegheny. 



8. (Cardamine rotundifolia Michx. Round-lEavEd WaTER-crESS ; 

 (Man. p. 455 ; 1. F. f. 1734.) In cold springs, N. J. to Ohio, N. C. and 

 Ky. — Pennsylvania : Delaware. 



25. DENTARIAIv- 



Blades of basal and stem-leaves similar. 



Rootstocks tuberous, moniliform, not scaly : leaf-segments laciniate or lobed. 



Leaf-segments oblong to lanceolate. 1. D. laciniata. 



Leaf-segments ovate. ^. D. maxima. 



Rootstocks elongated, continuous, scaly : leaf-segments toothed or incised. 



3. D. diphylla. 

 Blades of basal and stem-leaves very dissimilar. 4. D. heterophylla. 



1. Dentaria laciniata Muhl. CuT-lEavED TooThworT. (Man. p. 



455 ; I. F.y. I73S-) In moist or rich woods, Quebec, Minn., Fla. and La. 

 — Pennsylvania : Northampton ; Bucks ; Philadelphia ; Chester ; 

 Lancaster; Franklin ; Susquehanna; Venango; Erie ; Delaware. 



2. Dentaria maxima Nutt. Large Toothwort. (Man. p. 456 ; I. F. 

 /• ^737-) 1° woods, Vt. to N. Y. and Va..— Pennsylvania : Allegheny. 



3. Dentaria diphylla Michx. Two-lEavED TooThwort. (Man. p. 

 456 ; I. F. f. 1736. ) In rich woods and meadows, N. S. and N. B. to 

 Minn., S. C. and Ky. — Pennsylvania ; Monroe ; Bucks; Huntingdon ; 

 Blair ; Sullivan ; Somerset ; Westmoreland ; Venango ; Erie. 



4. Dentaria heterophylla Nutt. SLENDER TooTHWORT. (Man. p. 



456 ; I. F.y. 1738.) In low woods, N. J. and Pa., and along the mountains 

 to Ga. and Tenn. — Pennsylvania : Adams ; Philadelphia ; CHESTER ; 

 Huntingdon ; Blair ; Cambria ; Franklin ; Somerset ; Allegheny. 



