ROSE FAMILY 151 



on the under side or on both surfaces ; flowers solitary, yellow, 

 much as in the preceding. — Roadsides ; common. — Fl. June — 

 August. Perennial. 



10. P. rupestris (Rock Cinquefoil), a Lall erect species, 1—2 

 feet high, with pinnate leaves of 3 — 7 leaflets and large white 



c6marum PALUSTRfi {Marsh Cinque/oil). 



flowers, is found only on limestone rocks in Montgomeryshire. 

 — Fl. May, June. Perennial. <4k 



11. P. argentea (Hoary Cinquefoil). — Stem nearly prostrate £ 

 leaves quinate, white underneath with adpressed wool, their edges 

 rolled back ; flowers small, yellow, several together. — Dry gravelly 

 places ; not common. — Fl. June, July. Perennial. 



