154 CRUCIFERAE 



3. Cardamine arenicola Britton. Sand BiTTER-CRESS. (Man. p. 454; 

 I. F.y. 172J.) In moist or wet sandy soil, Conn, to Fla., Ky. and Tenn. 

 — Pettnsylvania : Lancaster, Safe Harbor. 



4. Cardamine parviflora L. Smai.i.-flowerED BiTTER-CrESS. (Man. 

 p. 454 ; I. F.y. 172S.) On dry rocks, Quebec to western Ont. and Oregon, 

 and in the Alleghenies 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. y. ij^g.) 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. — Pennsylvatiia : 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; 

 Franklin ; Huntingdon ; Allegheny. 



7. Cardamine bulbosa (Schreb.) B.S. P. Bulbous Cress. (Man. p. 

 455 ; I. F.y^ 1733-) In wet meadows and thickets, N. S. to Minn., Fla. 

 and Tex. — Pennsylvania : Monroe ; Northampton ; Wyo:ming ; Bucks ; 

 Delaware ; Chester ; Lancaster ; Mercer ; Allegheny. 



8. Cardamine rotundifolia Michx. Round-lEaved WaTER-crESS ; 

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

 Ky. — Pejinsylvania : Delaware. 



25. DENTARIA L- 



Blades of basal and stem-leaves similar. 

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

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



Leaf-segments ovate. 2. D. maxima. 



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



3. D. diphylla. 

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



1. Dentaria laciniata Muhl. Cut-leaved Toothwort. (Man. p. 



455 ; I. F.y. 1735-) In moist or rich woods, Quebec, Minn., Fla. and La. 

 — Pennsylvania : Northampton ; Bucks ; Phil.\delphi.\ ; Chester ; 

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



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

 /• I737-) In woods, Vt. to N. Y. and Pa. — 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. 



