42 



In many of the other specimens ^ the lateral leaf- 

 lets are more numerous, ranging up to 6 pairs at least, 

 and these leaflets may rary much in form* No. 1 has 

 about 6 pairs of short, hroad leaflets; Sheet 2 has one 

 specimen with about 6 pairs of narrowly elliptical leaf- 

 lets, and another with 3-4 pairs and a larger terminal 

 leaflet* Sheets 4 and 6 show 3 larger-leared plants, 

 with 4 and 5 pairs of lateral leaflets; Sheet 6 has also 

 a small plant with Barbarea -like leaves similar to those 

 of Sheets 9-11, and a rather tall plant with narrow 

 leaflets and very slender branches. A great part of 

 this variation is, in all reasonable probability, genetic* 



22. Cardamlne pratensis L. Sp* PI. 656. 1753. 

 Common names: 



Cuckoo -flower • 



Meadow bitter-cress* 

 Distribution and habitat: 



Native; also in Europe and northern Asia. South- 

 ern Canada and northern U. S» Wet places, bogs, swamps* 



PI. of Mon. Co.i "W^t meadows and bogs; scarce"; 

 sereral stations. PI. Buf. Vic: "Rare"; one station. 

 C* F.t"wet marshes and meadows; scarce* Marshes, head 

 of Lake, and Dryden-Lansing swamp. Larch Meadow. Fleming 



