ROSACES 95 



silky beneath; Switzerland, Styria, Tirol, Dauphiny, 

 Pyrenees, rare. P. minima, Hall. ; flowers very small, 

 stem 1-2 in., 1-2 -flowered, leaves bright green, glab- 

 rous above ; high ; Alps, frequent. P. frigida, Vill. ; 

 flowers small, stem 12 in. high, i-2-flowered, leaves 

 dull green, villous on both sides with viscid hairs ; high ; 

 Alps, frequent. P. norvegica, L. ; stem 8-10 in., flowers 

 large, in crowded terminal cymes, hirsute ; Salzburg. 



F. Flowers yellow ; sepals and petals 5 each ; leaves all 

 digitate or pinnate : P. anserina, L. ; Silver Weed, with 

 interruptedly pinnate very silky leaves, is a very common 

 wayside weed. P. cinerea, Chaix., with very silky digi- 

 tate leaves; P. opaca, L., with more deeply-toothed 

 leaflets, and plant tinted red; P. verna, L. (including 

 Gaudini, Grml., aurulenta, Grml., and prostrata, Grml.), 

 leaflets obovate or cuneiform, toothed only in their upper 

 part ; grassy places, common ; are lowland plants. The 

 following are alpine or sub-alpine : P. multifida, L. ; 

 stem 6-12 in., much branched, segments of leaflets 

 linear, leaves tomentose beneath ; Zermatt, Dauphiny, 

 rare. P. aurea, L. ; flowers orange-yellow, stem single, 

 3-12 in., 3-5 -flowered, leaflets with a fringe of silky hairs ; 

 alpine pastures. P. alpina, Willk. ; resembling the last, 

 but stems caespitose, I -flowered; alpine pastures. P. 

 alpestns, Hall (villosa, Crntz., salisburgensis , Haenk., 

 sabauda, DC.); resembling P. verna, but flowers larger, 

 of a brighter yellow, leaflets more deeply incised, and with 

 auriculate stipules; alpine pastures, common. P. hep- 

 taphylla, Mill. ; flowers large, stem erect, many-flowered, 

 leaflets 7-9, dentate nearly throughout; pastures, local. 

 P. pyrenaica, Ram. ; resembling P. alpestris, but a larger 

 stouter plant, with more leafy stem, and flowers on shorter 



