31 



IS. A. ACUTILOBA, Lawson, (" May-flower.") 

 Dry, shady, woods. A p. 3. (B). 

 THALICTRUM. Tourn, (Meadow-rue). 



20. T. DioicuM, L. (Early Meadow rue). 

 River banks and low woods. Ju. 1. (B). 



21. T. I'URPURASCENS. (Purplish Meadow-rue). 



Templeton and along the Ottawa below the city, (H. M. Ami*), 

 Hull, (J. F). Tiiis species is distinguishable from T. Cornutl 

 by having the anthers drooping on capillary filaments, au'l the 

 flowers greenish purple. On the other hand, T. Cornutl has 

 white flowers, short filaments and anthers not drooping. 



22. T. CoRNUTi, L. (White-flowered Meadow-rue). 



Islands and wet meadows and swamps ; a tall handsome jdant. 

 July-1. (B). 

 RANUNCULUS, L. (Crow-foot. Buttercup). 



28. R. AQUATiLis, L. V. TRicnoPiiYLLUs, Cliaix, (White Water-Crow- 



foot). 

 Stagnant and slow-flowing waters. Ju. 1. 



29. R. MULTIFIDUS, Pursh. (Yellow Water-Crow-foot). 



In shallow water, and creeping over mud, Mallock's Bay, Dow's 

 Swamp and Kettle Island, (J. F.) Billing's Bridge. (R. B. 

 Whyte). Ju.-2. 

 V^ar. y. repens, Watson, 



Leaves all round-reniform, palmately, 3 S cleft ; steins creeping in 

 mud, Casselman and Gatineau Point, (Prof. Macouu). Ju. 2. 



31. R. ixAMMULA, L. var. reptans, Meyer, (Smaller Creeping Crow- 

 foot). 



Mud-flats and river margins. July 1. 



32. R. Cymbalaria, Pursh, (Salt-water Crowfoot). 

 In a low wet meadow, at Thurso, P. Q. Ju. 2. 



37, R. ABORTivus, L. var. .micranthus, Gray, (Small-flowered 

 Buttercup). 

 Woods and Meadows. From Miicoun's Catalogue, Part III., p, 

 480. It would appear that our Ottawa plant is nut the type of R. 

 abortlvus, L. May 2. (B). 



