HO ICOSANDRIA POLYGYNIA. [CI. 12. 



Mt. thickets, Yorksh. T? . 6.3/. bushy, L. hairy beneath. Fl. yell, 

 2. P. anserina, 12. 861. (Silver-weed, or Wild Tansy.) Leaves inter- 

 ruptedly pinnate, serrated, silky. Stem creeping. Stalks axil- 

 lary, solitary, single-flowered. 

 Spongy humid soil. If. 6, 7. A silky herb, with several long, trail- 

 ing, jointed stems. Fl. large, bright, yellow. 

 2. P. rupestris, 29. 2058. (Strawberry-flowered C.) Leaves lyrate- 

 pinnate. Leaflets seven, five, or three, ovate, serrated, hairy. 

 Stem erect. 

 Craig Breddin, Montgom. If. 6, 7. 1/. corymbose. Fl. white. Seeds 

 smooth. 



** Leaves digitate. 



4. P. argentea, 2. 89. (Hoary C.) Leaflets five, w edge-shaped, jag- 



ged ; downy beneath. Stem ascending. 

 Gravelly soil. If. 6. Stems white and cottony. Fl. small, yellow. 



5. P. alpestris, P. aurea, 8. 561. (Alpine C.) Radical leaves of five 



wedge-shaped, somewhat hairy, leaflets ; deeply cut in their 

 upper half. Upper stipulas ovate. Stems ascending. 

 N. mts. 1[. 7. About a span. Pet. obcordatc, orange-yellow. 



6. P. verna, 1. 87. (Spring C.) Radical leaves of five or seven, obo- 



vate-wedge-shaped, partly serrated, furrowed leaflets ; bristly 

 at the edges and ribs beneath. Upper stipulas dilated. Calyx- 

 segments partly three-ribbed. Stems procumbent. 

 Elevated past. If. 4, 5. Stems spreading all round. Pet. yellow. 



7. P. opaca, 35. 2449. (Hairy C.) Radical leaves of seven hairy, 



linear-wedge-shaped, deeply serrated leaflets ; stem-leaves ter- 

 nate, mostly opposite. Stems recumbent. 

 Mount, of Sc, rare. If. 6. A span high, slender. Pet. bright yell. 



8. P. alba, 20. 1384. (White C.) Radical leaves of five leaflets ; silky 



beneath ; tipped with converging serratures. Stems thread- 

 shaped, procumbent. Receptacle very hairy. 

 Mts. Wales ? If. 7, 8. Leafi. ellipt.-obl. Fl. white, on slender stalks. 



9. P. reptans, 12. 862. (Creeping C.) Leaflets five, obovate, serrated. 



Stem creeping. Stalks axillary, single-flowered. 

 Mead, and past. If. 6 — 8. Fl. bright yellow, on long stalks. 



*** Leaves ternate. 



10. P. tridentata, 34. 2389. (Three-toothed C.) Leaflets three, wedge- 



shaped ; smooth above ; hairy beneath ; with about three ter- 

 minal teeth. Stem panicled, erect. 

 Werron Mt., Angus. If. 5, 6. Stem 3 — 4 in. Fl. white. Seeds even. 



11. P. Fragaricistrum, Fragaria sterilis, 25. 1785. (Strawberry- 

 leaved C.) Leaflets three, roundish-obovate, serrated, hairy. 

 Stems prostrate. Seeds corrugated, hairy at the scar. 



Dry past. If . 3, 4. Like a strawberry, except in the fruit. Fl. white. 



258. TORMENTlLLA. Tormentil. 

 1. T. officinalis, 12. 863. (Common T.) Stem ascending, branched. 

 Leaves almost sessile. Stipulas cut. 



