OCTANDRIA— TRIGYNIA. Polygonum. 237 



what heart-shaped, and nevertheless decurrent, making a nar- 

 row wing to their footstalks. Footstalks of the stem-leaves tu- 

 bular and sheathing, each crowned with a membranous jagged 

 stipula. Cluster terminal, leafless, erect, cylindrical, dense, 

 many-flowered, interspersed with membranous, notched, brown 

 bracteas. Partial stalks simple, very slender. Cal. rose-co- 

 loured, deeply 5-cleft, obtuse, spreading. Stam. 8, longer than 

 the calyx. Styles quite distinct, with small obtuse stigmas. Seed 

 triangular, black and shining. 



7. P. vivipariwi. Alpine Bistort. 



Stem simple, with a single, spiked, cluster of flowers. Leaves 

 lanceolate, revolute, with copious, prominent, marginal 

 veins. 



P. viviparum. Linn. Sp. PZ.516. Willd. v. 2. 441. Fl. Br. 428. 

 Engl.Bot.v.]0.t.669. Hook. Lond. t. SI. Scot. 120. Fl.Dan. 

 t.]3. Ehrh.Phyt.M. 



P. n. 1558. Hall. Hist. v. 2. 258. 



P. n. 34. Gmcl. Sib. v. 3. 44. t. 7.f. 2. 



Bistorta minor. Ger. Em. 399./. RaiiSyn.\47. Clus.Pan.A79.f. 

 Camer. Epit. G84. /. Moris, v. 2,585. n. 3 ; also alpina n. 5. 

 sect. 5, t.28. last figure. 



B. alpina minima. Hall. Opusc. 234, with an ample criticism of 

 synonyms. 



B. minima. Bauh. Hist. v. 3. p. 2. 539./. 



B. foliis lanceolatis. Linn. Fl. Lapp. n. 152. ec/. 1 . 1 15. ed.2. 121. 



Small Bistort. Pet. H. Brit, t.b.f. 2. 



/3. Bistorta minima alpina, foliis imis subrotundis et minutissime 

 serratis. Raii Syn. 147. 



B. pumila, foliis variis, rotundis et longis. Moris, v. 2. 585. n. 4. 



Welsh Bistort. Pet. H. Brit. t. o.f. 3. 



In pastures, or moist fissures of rocks, in alpine situations. 



In several parts of Westmoreland, and the north of Yorkshire. Ray, 

 Hudson. In dry stony pastures, by the side.s of the Scottish 

 mountains, not unfrequent. Lightfoot, Hooker. Near the top 

 of Ben Lomond. 



Perennial. June, July. 



Like the last in habit, but much smaller, and essentially distinct. 

 Root fleshy, astringent. Herb smooth. Stem from 3 to 6 inches 

 high, leafy. Leaves stalked, for the most part linear-lanceolate, 

 often somewhat elliptical, and in /3 the lower ones are short, 

 round, or heart-shaped ; all pale beneath, revolute, and curiously 

 marked with prominent marginal veins, as if crenate. Stipulas 

 tubular, very long, membranous, roughish, sheathing the stem 

 opposite to each footstalk. Cluster cylindrical, interspersed with 

 numerous membranous bracteas. Fl. stalked, pale red, con- 

 structed much like the last 3 but in the place of many of the 



