66 Spring Flora of Ohio. 



Po-ten-til'-la fru-ti-co'-sa L. Shrubby Cinque-foil. — Stem erect, shrubby, 

 1-4 ft. high; leaves pinnate, leaflets 5-7, oblong-lanceolate, entire. 



Po-ten-til'-la rec'-ta Willd. European Cinque-foil ; Five-finger.— Coarse, 



erect, simple, hairy, 1-3 ft. high; leaflets 5-7, narrowly wedge-oblong, 

 coarsely toothed ; stipules large, cleft. 



b. PrdiiHcles axillary, solitary, j-floivei-ed. 



Po-ten-til'-la an-se-ri'-na L. Silver-weed. — Spreading by slender, 

 many-jointed runners, white tomentose and silky villous; leaves all 

 radical, pinnate. 



(/. Po-ten-tli-la can-a-den-sis Iv. Common Cinque-foil or Five-finger. — 



Stems slender and decumbent or prostrate, or sometimes erect ; leaves 

 ' ternate, but the lateral leaflet parted, appearing quinate. 



12. Genus CO'-MA-RUIVI. — Petals 5, much smaller than the sepals; 

 calyx deeply 5-cleft, bractlets 5 ; receptacle ovate, spongy. 



Co'-ma-rum pa-lus'-tre L. {Potcntilla paliistris Scop.) Marsh Five- 

 finger. — -Petals purple, calyx 1 in. broad, purple inside; stems ascend- 

 ing from a decumbent base ; leaflets 5-7. 



13. Genus WALD-STEI'-NI-A. — Calyx-tube inversely conical with 5 

 often minute and deciduous bractlets; achenes 2-5; leaves chiefly 

 radical, leaflets 3, broadlj^ cuneate, cut-toothed. 



Wald-stei'-ni-a fra-ga-ri-oi'-des (Mx.) Tratt. Barren Strawberry. — Flow- 

 ers small, yellow, on bracted scapes. 



14. Genus GE'-UM. — Calyx deeply 5-cleft, usually with 5 small 

 bractlets at the sinuses; achenes numerous, the long persistent styles 

 either straight or jointed; leaves pinnate or lyrate. 



Ge'-um can-a-den'-se Jacq. {G. album Gmel.) Avens. — Petals white 

 or pale greenish-yellow; styles jointed and bent near the middle, the 

 upper part deciduous and mostly liairj- ; head of fruit sessile in the 

 calyx. 



Ge'-um ver'-num (Raf.) T. & G. Avens. — Petals yellow, about the 

 length of the calyx; styles smooth; head of fruit conspiuously 

 stalked in the calyx. 



Ge'-um ri-va'-le L. Water or Purple Avens. — Petals dilated-obovate; 

 purplish-orange; styles jointed and bent in the middle, the upper 

 joint plumose ; head of fruit stalked in the brown purple cal3'x. 



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