ROSE FAMILY 



145 



persistent, with an epicalyx of 5 or 4 l.iracteoles ; pdah 5, rarely 

 4; s/aiiit/is iiianv ; L^ir/'e/s many, i-ovuled; fn/it an etx'rio of 

 achenes on a small dry receptacle ; s/j/e not elongating. (Name 

 from the Latin patens^ powerful, from the medicinal properties of 



nt 



'om the Latin potens, powerful, from the medicinal properties 

 ome species, especially, perhaps, of P. palustris, an astringe 



so 

 tonic 



Ailiiiiis glabrous or marly so 

 itorvcgica, with stcn erect, 



reccpiacle coiiLave 

 S — ro in. high ; IcaL'tS 

 racemes, lias 



palmate ; and //iTi'tv-.? yellow in crowded terminal 

 becii found in Burwell Fen, 

 Cambridgeshire, and in York- 

 shire, but has probably been in- 

 troduced with Norwegian timber. 

 Annual. 



2.* P. kiria, wilh sfiin erect ; 

 ka-'es of 5 — 7 much-toothed 

 leaflets, obovate on the radical 

 and linear on the cauline leaves, 

 is also not indigenous. 



3. P. sUrills (I-jarren Straw- 

 berry). — Prostrate, without run- 

 ners, silky ; leaves ternate ; leaflefs 

 obovate, crenate, very hairy 

 beneath ; fcatahies slender ; 

 /FoTi'crs white, not more ihnn -5 in. 

 across : petals short, notched. — 

 Banks and hedges ; abundant. 

 One of the earliest spring flowers, 

 often confounded by beginners 

 with the wild strawberr)', from 

 which the above characters ser\e 

 to distinguish it. — Fl. January — 

 May. Perenirial. 



4. P. le'rna (Spring Cinque- 

 foil). — A small woody hairy plant, about 5 in. long ; leazes of 5 — 7, 

 obovate serrate leapleis, hairy on the edge and on the ve.ns 

 beneath ; Jfoii'ers yellow, 2 — 3 together, j; in. across. — F)ry 

 pastures; not common. — Fl. April — June. Perennial. 



5. P. Crditfzii (Alpine Cinquefoil). — A larger, more erect, but 

 closely allied species ; stem 4 — ro in. high ; floi^'ers i in. across. — 

 Alpine rocks in Scotland, Wales, and the north of England : 

 rare. — Fl. June, July. Perennial. 



6. P. ereeta {Ccmmon Formentil). — A small, sub-erect plant; 

 rhi:ome woody ; stems 6 — 10 in. high, slender, leaty, with curly 



■.^TEN'TILLA EKt^CT 



Tmni-nt-M. 



