224 Class XIII. Order VI. 



231. TROLLIUS. 



TROLLIUS LAXUS. Salisb. American Trollius. 



Petals five, oblong, spreading ; nectaries shorter 

 than the stamens. 



Syn. TROLLIUS AMERICANUS. Donn. 



This plant resembles a Ranunculus, and is easily passed by for 

 one of the common species of that genus. Leaves palmate, 

 lobed, cloven almost to the petiole into five segments or leafets, 

 the middle one distinct, all of them smooth, cut, and toothed. 

 Petals yellow, round-obovate. Capsules about six, erect, crowned 

 with the persistent styles. Gathered in Hanover, N. H. June. 

 Perennial. 



232. RANUNCULUS. 



RANUNCULUS FLAMMULA. L. Small Speanvort. 



Smooth ; stem declining ; leaves lanceolate, the low- 

 er ones petioled ; peduncles terminal and axillary, one 

 flowered ; calyx somewhat reflexed. 



Stem somewhat decumbent ; leaves lanceolate, acute, entire 

 or toothed, smooth. Flowers small, soliiary, yellow. Peduncles 

 round. Calyx reflexed. In ditches, &,c. rare. Introduced. 

 June to August Perennial. 



RANUNCULUS FILIFORMIS. MX. Filiform Crowfoot. 



Smooth and very small ; stems filiform, creeping ; 

 geuiculate ; joints one flowered ; leaves linear-subulate, 

 obtuse. Mr. 



Syn. RANUNCULUS SEPTA NS. /3. Decand. 



A very delicate, creeping species. Stem round, filiform, sar- 

 mentose, sending out roots and leaves from the joints. Leaves 

 linear, compressed, fleshy, obtuse. Flowers solitary. Calyx 

 leaves roundish, obtuse, concave, spreading. Petals obovate, 

 emarginate. Scale of the nectary elevated, adnate at the sides, 

 forming a cavity underneath it. Low grounds, Topsfield, Bart- 

 lett, New-Hampshire. June, July, Perennial. 



Variety /3. ovalis. Leaves oval and lanceolate. Petals from 

 five to eight. Sent from Danvers by Dr. Nichols. 



