I08 NEW YORK STATE MUSEUM 



In woods, New Hampshire and Massachusetts to Florida, Ontario, 

 Minnesota and Kansas. Flowering in early spring, March to early June. 



Swamp or Marsh Buttercup 



K(ii!ttin'ii!ti.s septentrional is (Linnaeus) Poiret 



Plate 70 



vStenis branching, i to 2 feet long, or becoming longer in summer, 

 ascending, the later branches procumbent and often rooting at the nodes. 

 Roots simply fibrous; stems glabrous or ptibescent. Leaves large, petioled, 

 three-divided, the divisions mostly stalked, usually euneate at the base, 

 cleft into broad lobes; petioles of the lower leaves sometimes a foot long. 

 Flowers bright yellow, i to i\ inches broad; petals five, obovate, twice as 

 long as the spreading sepals. Stamens nvimerous. Fruit a globose or oval 

 head of fiat, strongly margined achenes, each achene tipped by the subulate, 

 persistent, sword-shaped style. 



Marshes, swamps, ditches and low meadows. New Brunswick to Mani- 

 toba, Georgia and Kansas. Flowering from Aj^ril to July. 



Hispid Buttercup 



Rdiuiiictilits liispidiis Michaux 



Plat..- 60I. 



Plant usually hairy when young, sometimes merely appressed- 

 pubescent or glabrate when old; stems ascending or spreading, visually 

 several from a thickened, fibrous, perennial root; at flowering time the 

 stems only a few inches long, later becoming i to 2 feet long, but not 

 stolonifcrous. Leaves pinnately three to five divided, the divisions 

 ovate, oblong or obovate, narrowed or euneate at the base, sharply cleft 

 or lobed, usually thin; flowers one-half to iHnches broad; petals usually 

 five, oblong, about twice as long as the spreading sepals and entire or 

 sometimes slightly notched at the apex; achenes of fruit oval, lenticular, 

 narrowly margined, abruptly tipped by a subulate style of about one-half 

 their length. 



