Davis: RANUNCULI OF NORTH AMERICA. 479 



This is also closely allied to R. abortivus in habit and foliage. 

 Plant glabrous, not lucid : akenes slightly compressed and 

 margined, tipped with subulate hooked or recurved styles hardly 

 half their length. April, May, North Carolina, Virginia, 

 Massachusetts. 



36. R. recurvatus Pom. in Lam. Encycl. 6: 125. 1804. 

 R. lanuginosus WALT. Car. 159. 1788. Not Linn. 

 R. saniculceformis MUHL. Cat. 54. 1813. 



R. tomentosus SPRENG. Neue Entd. i : 287. 1820. 



Plant hirsute or only slightly hairy, erect, ^ to 2 feet high, 

 branching : all the leaves petioled and never divided to the 

 base, i^ to 3 inches wide, deeply 3-cleft, the lobes broadly 

 cuneate, acute, toothed or lobed : petals light yellow, about 2 

 lines long ; sepals of same length or little longer : akenes com- 

 pressed, margined : beak one-half their length, recurved. Damp 

 woods, Nova Scotia to Lake of the Woods, south to Missouri 

 and Florida. 



37. R. Bongardi GREENE, Erythea, 3: 54. 1895. 



R. occidentals var. parviflorus TORR. Bot. Wilkes Exp. 



214. 1854. 

 R. occidentals var. Lyalli GRAY, Proc. Am. Acad. 21 : 



373. 1886. Not R. Lyalli Hook. f. 

 R. tencllus var. Lyalli ROBINSON, Syn. Fl. I : i : 33. 1895. 

 R. Greener HOWELL, Fl. N. W. Am. i: 18. 1897. 

 R. Earlei GREENE, Pitt. 4 : 15. 1899. 

 R. Lyalli RYDB. Mem. N. Y. Bot. Gard. i : 166. 1900. 



Much like the following variety which is better known and 

 was formerly considered the type. Plant more hirsute : leaf 

 segments much broader : petals rather of the larger size, some- 

 what persistent : akenes somewhat hispid ; styles rather long. 

 Northern California to Colorada and Montana and to Fort 

 Wrangel, Alaska. 



Var. Douglasii (HOWELL). 

 R. recurvatus BONG. Veg. Sitch. 123. 1831. Mainly, 



not Poir. 

 R. tenellus NUTT. ex Torr. & Gray Fl. i : 23. 1838. 



Not Viviani. 



R. Nelsoniv&v. tenellus GRAY, Proc. Am. Acad. 8: 374. 

 1872. 



