Class XII. Order V. 207 



petals erect, hardly exceeding the calyx, inversely heart-shaped, 

 veined and shaded with yellow purple. The fruit becomes 

 erect, and is crowned with long, feathery, contorted awns. 

 May, June. Perennial. 



GEUM VIRGINIANUM. L. Virginian Avens. 



Leaves trifoliate, tipper ones lanceolate ; petals 

 shorter than the calyx ; seeds hairy, with naked awns, 

 twisted at top. 



Stem erect, one or two feet high, branching, hairy. Lower 

 leaves in threes, sometimes in fives ; the upper ones simple, oval, 

 or lanceolate, the whole unequally serrate. Stipules large, 

 ovate, few toothed. Flowers nodding, fruit erect. Petals white, 

 not longer than the calyx. Thickets. June, July. Perennial. 



GEUM ALBUM. Willd. White Avens. 



Pubescent, leaves of the root pinnate, of the stern 

 ternate ; stipules cut ; flowers erect ; petals not longer 

 than the calyx. 



Stem erect, hairy, branching at top. Leaves variable, those 

 of the root and lower part of the stem pinnate, or ternate, or 

 simple with appendages on the petiole, all of them hairy. Sti- 

 pules large, toothed, and lobed. Flowers small. Calyx acute, 

 hairy. Petals shorter than the calyx, entire, whitish. Seeds 

 hairy. Awns reflected, smooth, geniculated or uncinate and 

 hairy at tip. About hedges. July. Perennial. 



Between this and the foregoing there are intermediate vari- 

 eties. 



GEUM STRICTUM. Willd. Yellow Avens. 



Hairy ; leaves all interruptedly pinnate, leafets ovate, 

 toothed, the terminal one largest ; flowers erect, pe- 

 tals longer than the calyx. 



A tall, hairy species with yellow flowers. Terminal leafet 

 large. Alternate segments of the calyx linear. Flowers yellow. 

 On Prospect hill, Charlestown. June. Perennial. 



In a specimen gathered in Pn-etton woods, near the White 

 mountains, the stem leaves are trifid and the petals hardly longer 

 than the calyx. Perhaps a new specie*. 



