RANUNCULACEAE OF IOWA. 127 



flowering from May until September. We have seen one 

 specimen collected in Page county and another in the State 

 University herbarium from Jones county. Prof. Hitch- 

 cock reports the species from Story county and Mr. Mills 

 by letter from Henry county. The species is scarcely if at 

 all persistent. 



Arthur, Contr. to the Flora of Iowa, p. 5, 1876; Hitchcock, Trans. St. 

 Louis Acad, of Science, vol. 5, p. 483; Pammel, Proc. Iowa Acad, of 

 Sciences, vol. 4, p. Ill; Fitzpatrick, Proc. Iowa Acad, of Sciences, vol. 

 5, p. 135; Manual of the Flowering- Plants of Iowa, p. 4; Halsted, Bull. 

 Iowa Agr. Col. 1888, p. 36. 



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

 Bulbous Buttercup or Bulbous Crowfoot. 



Stem about one foot high, from a bulbous base; radical 

 leaves 3-divided, lateral divisions sessile, the terminal 

 stalked and 3-parted, all more or less cleft and 3-toothed; 

 calyx reflexed; petals much longer; head of fruit globose; 

 achenes compressed, short-b'eaked. 



We have seen no Iowa specimen of this species. Prof. 

 Bessey reports it from Indianola, Warren county; Prof. 

 x\rthur lists it in his Flora; and Prof. Halsted includes it in 

 his list of Iowa weeds. If it belongs to the Iowa Flora it 

 is an introduced weed and apparently very rare. 



Bessey, Contr. to the Flora of Iowa in Fourth Rep. Iowa Agr. Col., 

 p. 91; Arthur, Contr. to the Flora of Iowa, p. 5, 1876; Halsted, Bull. 

 Iowa Agr. Col., 1888, p. 36; Fitzpatrick, Manual of the Flowering Plants 

 of Iowa, p. 4. 



(b) Erect or ascending plants of moist soil . 



Ranunculus pennsylvanicus L. f. Suppl., p. 272. 

 1781. Bristly Buttercup. 

 Annual; Stem 1-2 feet high, branching, bristly hairy; 

 leaves ternately compound-, divisions frequently 3-cleft, the 

 lobes lanceolate, cuneate, cut or toothed; flowers small ; 

 calyx reflexed ; petals not longer than the sepals ; head of 

 fruit oblong, achenes tipped by a sharp beak one-third 

 their length. 



This species is infrequently found in wet soil, blooming 



