ROSACES 93 



S. procumbens, L. ; stem procumbent, leaflets wedge- 

 shaped, 3 - toothed at the tip ; high pastures ; Alps, 

 Vosges, Pyrenees. 



8. FRAGARIA, L. 



Leaves usually of 3 leaflets, with adnate stipules ; 

 flowers usually white; calyx-lobes 5, with 5 outer sepals ; 

 carpels very numerous, ultimately separated on the surface 

 of the very fleshy receptacle. 



F. vesca, L., Wild Strawberry ; calyx spreading hori- 

 zontally or reflexed in fruit ; common. F. elatior, Ehrh., 

 Hautboy Strawberry; flowers larger, calyx spreading 

 horizontally in fruit. F. collina, Ehrh., Alpine Straw- 

 berry ; calyx erect in fruit, flowers often greenish ; hills 

 and woods. 



9. POTENTILLA, L. 



Leaves compound, with adnate stipules ; flowers usually 

 white or yellow, solitary or in corymbose cymes ; calyx- 

 lobes, outer sepals, and petals usually 5 ; carpels nume- 

 rous, on a dry receptacle. 



A. Shrubby ; flowers yellow : P. fruticosa, L.; flowers 

 large, in few-flowered cymes, leaves pinnate, very silky ; 

 Pyrenees, local. 



B. Herbaceous (as the remaining sections); flowers 

 yellow, sepals and petals usually 4 each : P. Tormentilla, 

 Scop. (Tormentilla erecta, L.); flowers small, stem pros- 

 trate; very common. P. procumbens, Sibth. ; larger, leaf- 

 lets 3 or 5 ; Pyrenees. 



C. Flowers white, sepals and petals 5 each : P. Fraga- 

 riastrum, Ehrh., Barren Strawberry; flowers very small, 

 leaves of 3 leaflets, very silky beneath ; hedge-banks, very 



