BOTANICAL GAZETTE. 207 



our species go, are in habit, the stems ot the first being generally 

 naked below and the second being leafy, and in the seeds of 

 Lkntitria being on broad, and of Cafdqmtye on slender stalks. 



The species of the eastern- United States are in need of revis- 

 ion and the following is submitted to the consideration of botanists. 



1. Cardamine diphylla. Wood. Rootstock long and con- 

 tinuous; toothed: stem leaves two. 



2. Cardaminb heterophylla, Wood. Rootstock interrupt- 

 ed, forming a chain of two or three narrow oblong toothed 

 tubers; stem leaves two to seven, mostly three, alternate.— The 

 forms with more than three leaves are Dentaria maxima, Isutt. 



This and the next species it would sometimes be hard to sepa- 

 rate, tor the next is sometimes found with two leaves, and some- 

 times with three and these alternate instead of whorled. 



3. Cardamine l acini ata, Wood. Rootstock same as last; 

 leaves mostly three in a whorl, sometimes only two. 



Var. multifida, James. Leaves two or three, alternate or 

 whorled. the leaflets with narrow linear lobes. 



I do not think this form, called Dentaria multyfida, Muhl., can 

 be be separated with justice from the laciniata. In a recent trip to 

 Lookout mountain, Chattanooga. I found both forms in full bloom, 

 although not growing together, and some were so exactly interme- 

 diate in the division of the leaflets that it was hard to decide what 

 they were. The rootstocks of both are alike. The variety howev- 

 er grows in poorer soil than the species itself, and we can thus ac- 

 rount for the finer division of Hie leaves. To take the extreme 

 form of the species and the variety and compare them, one would 

 be inclined to give to each specific rank, but when we find them 

 shading into one another as gradually as they do, we can see no 

 other plan than to consider the multifida as a variety of C. lacini- 

 ata. 



The other species of Dentaria of the United States will now be 

 Cardamine Califomica, C. macrocarpa, and C. tenet/a. 



I have specimens of var. imi/tifido and many other specimens 

 for exchange for my desiderata.— Jos. P. James, Custodian Cin. 

 Soc. Xat. Hist. Cm.'. (). 



GENERAL NOTES. 



Viola Beckwithii, T. & G., var. trinervata.- This pretty little violet 

 was £rst collected near Goldendale, "Wash. Terr., April 1, 187& and at 

 different times since, and has been distributed in my sets as , I . JJepK- 

 Withii, var. The characters of this new variety may eventually entitle 

 it to specific rank, but for the present it is retained under 1 .Beckwiitui. 

 The principal characters are in the more simply pedate leaves, witn 

 broader lobes, having remarkable callous tips, and three prominent 

 • erves, very strong in the mature leaves, the lateral pair submargmai, 

 sometimes five nerves, when the outermost are strictly marginal — 



Tnos. Howell, Arthur, Oregon. 



