1916] Flora of the Boston District, — XXIII. 1G7 



RANUNCULUS. 



R. abortivus L. Woods and meadows, common. 



R. abortivus L., var. eucyclus Fernald. Deer Leap, Andover 

 (A. S. Pease, June 4, 1904); Topsfield (./. 77. Sears, June 5, 1899; 

 June 1, 1902); ledges, abundant, W. Roxbury (F. G. Floyd, June 12, 

 1902); moist shady woodland, Hyde Park (F. G. Floyd, June 17, 

 1900); low woods, a good-sized colony, Hyde Park (F. G. Floyd, 

 June 1, 1902). 



II. acris L. Fields and meadows, common throughout. 



R. acris L., var. Steveni (Andrz.) Lange. Boxford, Salem, Mel- 

 rose, Lexington, Wellesley, Franklin Park [Boston]. 



R. allegheniensis Britton. Woods and ledges, occasional near 

 Boston and Salem. Apparently common on diorite hills running 

 from Salem to Lexington. 



R. aquatilis L., var. capillaceus DC. Slow streams and ponds, 

 occasional. 



R. bulbosi'S L. Fields and pastures, very common throughout. 



R. Cymbalaria Pursh. Salt marshes along the coast, occasional. 



R. delphinifolius Torr. Quiet waters; occasional, but no reports 

 from southeastern towns. 



R. delphinifolius Torr., var. terrestris (Gray) Farwell. Muddy 

 shores; Marblehead, Winchester, Middlesex Fells, Belmont, Concord. 



R. fascicularis Muhl. Dry hillsides; common on diorite hills 

 north and west of Boston, rare elsewhere. 



R. Ficaria L. Garden escape at Cambridge (W. Deanc, May 8, 

 1914); S. Hingham (77. IT. Gushing, May, 1891, to date). 



R. Flammula L., var. reptans (L.) Mey. Sandy shores; common 

 in Essex County, occasional in Middlesex County; apparently rare 

 or wanting south of Boston. 



R. laxicaulis (T. & G.) Darby. Muddy places, Byfield [Newbury] 

 (J. 77. Sears, Sept. 18, 18SG et seq.); Sharon (E. 77. Hitchings, Aug., 

 18S4); Easton (Oakes Ames, Aug. 31, 1898). 



R. micranthus Nutt. Rocky places; Peabody, Melrose, Stone- 

 ham, W. Roxbury, Milton, Sharon; Hingham, according to Bouve, 

 Botany of Hingham, in History of Hingham, i. pt. 1, 92, 1893. 



R. pennsylvanicus L. f. Lawrence, above dam, north side (.7. 

 Robinso?i, Aug. 5, 1879); " near Boston " (Won. Boott, Aug. 20, 1853; 



