RANUNCULACEAE. 



Vol. II. 



22. Ranunculus bulbosus L. ISulbous lUit- 



tercup. Yellow weed or Gowan. 



Fig. 1 91 6. 



Ranunculus bulbosus L. Sp. PI. 554. 1753. 



Erect from a bulbous-thickened base, hairy, 

 6'-l8' high. Leaves petioled, 3-divided, the ter- 

 minal division stalked, the lateral ones sessile or 

 nearly so, all variously lobed and cleft, flowers 

 bright yellow, about 1' broad; petals 5-7, much 

 longer than the rellexed sepals, obovate, rounded ; 

 head of fruit globose, 5"-6" broad; achenes com- 

 pressed, very short-beaked. 



In fields and along roadsides, New England to 

 North Carolina, Tennessee and Louisiana. Natural- 

 ized from Europe. May-June. In England the name 

 Buttercups is chiefly applied to this species and to R. 

 rcpcns and R. acvis ; called also in middle English 

 Kingcups, Goldcups, Butter-flowers and Blister-llow- 

 ers. Frogwort. Pilewort. Golden knops. Cuckoo- 

 huds. Pissabed. Horse-gold. St. Anthony's-turnip. 

 May-July. 



23. Ranunculus pennsylvanicus L. f. 



Bristly Buttercup or Crowfoot 

 Fig. 1917. 



Ranunculus pennsylvanicus L. f. Suppl. 272 1781. 



Erect, branching, pilose-hispid, i-2 high, 

 leafy. Leaves thin, 3-divided; divisions stalked, 

 deeply 3-cleft, the lobes lanceolate, cuneate, 

 acute, incised ; flowers yellow, 3"-4" wide ; petals 

 equalling the reflexed sepals or shorter ; head of 

 fruit oblong or cylindric, 3" thick, sometimes 6" 

 long; achenes smooth, pointed with a sharp beak 

 one-third their length; receptacle conic, hairy. 



In wet, open places. Nova Scotia to Georgia, 

 British Columbia, Kansas and Colorado. June-Aug. 



24. Ranunculus Macounii Britton. jMa- 

 coun's Buttercup. Fig. 1918. 



Ranunculus hispidus Hook. Fl. Bor. Am. i : ig. 1829. 



Not Michx. 1803. 

 Ranunculus Macounii Britton, Trans. N. Y. Acad. Sci. 



12; 3. 1892. 



Erect or diffuse, hairy, branching, i-2 high. 

 Leaves 3-divided, the blade 2'-^' long, the divi- 

 sions broadly oblong to ovate, acute, cuneate, 

 variously cleft and lobed ; flowers 5"-6" broad, 

 yellow, the petals exceeding the spreading or 

 slightly reflexed calyx ; head of fruit globose to 

 oblong, 4" thick; achenes smooth, pointed with a 

 sharp beak about one-fourth their length ; recep- 

 tacle obovoid. 



Quebec and Ontario to Illinois, Minnesota and 

 west to British Columbia and Washington, extending 

 south in the Rocky Mountains to Arizona. Summer. 



