RANUNCULACEvB. 213 



acuminate. It seems to be the same as a plant collected in Oregon 

 by Nuttall, in blossom only, and named T. heterophyllum, but never 

 published. [Probably Thalictrum occidentals, Gray, Proceed. Amer. 

 Acad. 8, p. 372.] 



4. TRAUTVETTERIA, Fisch. & Meij. 



1. Trautvetteria grandis, Nutt., 1. c 



Hab. Washington Territory, on the wooded slopes of the Cascade 

 Mountains. — The character of the thin and membranaceous leaves 

 seems to hold constant ; but the fruit has not yet been compared with 

 that of the Eastern T. palmata. 



5. RANUNCULUS, Linn. 



1. Ranunculus aquatilis, Linn. 



Hab. Gray's Harbor, Washington Territory, and in the interior of 

 Oregon. — One of the subspecies with the leaves all dissected into fili- 

 form divisions ; but the fruit is not sufficiently mature for determining 

 to which it really belongs. 



2. Ranunculus Flammula, Linn. 



Hab. Interior of Oregon, and alpine prairies on the upper waters 

 of the Columbia River. — This is the genuine R. Flammula of the 

 Old World, as the carpels show : some of the specimens belong to a 

 dwarf form. 



3. Ranunculus affinis, R. Br., var. lasiocarpus. 



Hab. Columbia River, between the Spokane and Fort Colville. — One 

 of the forms of this polymorphous species, with villous carpels. 



54 



