ROSACEiE. 69 



■>- -1- Style arising from the aide of the carpel. 



-14. P. frutieo'sa, L. (Shrubby C.) Stem erect, sA™ii2/, 

 1-3 feet high, much branched. Leaves pinnate, of 5-7 leaf- 

 lets, closely crowded, entire, silky, especially beneath. 

 Flowers numerous, large, yellow, terminating the branches. 

 — Bqgs. 



15. P. tPldenta'ta, Ait., (Three-toothed C.) is common 

 eastward towards the sea-coast. Stem 4-6 inches high. 

 Leaves rigid, palmate, of 3 wedge-shaped leaflets, 3-toothed 

 at the apex. Petals white. 



16. P. palustris. Scop. (Marsh Five -finger.) Stem 

 ascending. Leaves pinnate, of 5-7 lanceolate, crowded, 

 deeply serrate leaflets, whitish beneath. Calyx an inch 



■ hroacl, dark purple inside. Petals purple.— ^ogs. 



* * * Styles fill form^ lateral. Peduncles axillary ^ solitary^ l-jioioerecl. 



17. P. Anseri'na, L. (Silver- weed.) A low plant, 

 creeping with slender runners. Leaves all radical, interrupt- 

 edly pinnate ; leaflets 9-19, serrate, green above, silverg-silky 

 beneath. Flowers solitary, on long scape-like peduncles, bright 

 yellow. — Eiver and lake margins. 



18. P. Canaden'sis, L. (Canada C.) Stem prostrate' or 

 ascending, silky-hairy. Leaves palmate, of 5 leaflets, the 

 latter serrate towards, the apex. Flowers solitary. Petals 



. yellow',- larger than the sepals. — Dry soil. 



10. CUAIH,«'RHO»OS, Bnnge. 

 C. ereeta, Bunge. stem slender, 2-12 inches high, 

 branching above. Radical leaves many-cleft, forming a 

 . rosette ;' oauline ones 3-5-cleft. — N.W., prairies. 



H. FKAGA'KIA, Tourn. Stbawbekry. 



1. F. Virgrinia'na, Ehrhart. Achenes deeply imbedded in 

 pits on the surface of the fleshy receptacle ; calyx erect 

 after flowering. Leaflets firm, 



2. F. ves'ea, L. Achenes not sunk in pits, biit merely on 

 the surface of the receptacle ; calyx spreading. Leaflets 

 thin. ■;■'' 



