168 



RANUNCULACEAE 



Ranunculus 



Miles 



50 



Map 961 



Ranunculus obloncjifolius [_. 



~ 50 



Map 959 



Ranunculus lonojrostris Godr 



Jan. 



Feb. 



Mar. 



Apr. 



May 



June 



July 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Map 962 

 Ranunculus ambigens Wats. 



o 15 



Map 963 



Ranunculus abortivus L. 



infrequently in shallow water on the shores of lakes and bayous of streams 

 and in ditches. 



Lab., Newf., N. S., Maine, and the Coastal Plain to N. J., westw. to 

 Minn., Alaska, and Calif.; also in temperate S. A.; Eurasia. 



3. Ranunculus longirostris Godr. (Rhodora 38 : 42-46. 1936.) (Ranun- 

 culus cirdnatus of authors and Batrachium circinatum of manuals.) 

 Map 959. This is our most common white-flowered buttercup. Its habitat 

 is similar to that of the preceding species and it is more or less frequent 

 in the lake area, becoming rare south of it. 



Que. to Oreg., southw. to Del., Pa., Tenn., Nebr., Kans., Tex., Ariz., and 

 N. Mex. 



4. Ranunculus pusillus Poir. Map 960. This species was reported from 

 Knox County by Spillman. I found a large colony of it in a low woods 

 about a mile east of Palmyra in Harrison County, and it is a common 



