OCTANDRIA— TRIGYNIA. Polygonum. 237 



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

 row v/ing to their /oo^s^r7/A-6\ Footstalks of the stem-leaves tu- 

 bular and sheathing, each crowned with a membranous jagged 

 stipula. Cluster terminal, lealless, erect, cylindrical, dense, ma- 

 ny-flowered, interspersed with membranous, notched, brown 

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

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

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

 triangular, black and shining. 



7. P. viv'iparum. Alpine Bistort. 



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

 lanceolate, revolute, with copious, prominent, marginal 

 veins. 

 P. viviparum. Linn. Sp. PL 516. Wilkl. v. 2. 441. Ft. Br. 42S. 

 Engl. Bot. v.HO. t. 669. Uook. Loud. t.8\. Scot. 120. Fl.Dan. 

 i. 13. Ehrh. Ph'jt. 34. 

 P. n. 1558. Hall. Hist. V. 2. 2jS. 

 P. n. 34. Gmel. Sib. v 3. 44. 1. 1 . f. 2. 



Bistorta minor. Ger. £m. 399./. Raii Sijn. 147. Clus. Pan.470.f. 

 Camer. Epit. 684./. Moris, v. 2. 585.71.3 ; 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 lanceolutis, Liini. Fl. Lapp. n. 152. ed. 1 . 115. ed. 2. 121. 

 Small Bistort. Pet. H. Brit. f.5.f. 2. 

 (3. Bistorta minima al])ina, foliis imis subrotundis et minutissime 



serratis, Raii Syri. 147. 

 B. pumila, foliis variis, rotundis et longis. Moris, v. 2. 5S5. u. 4. 

 Welsh Bistort. Pet. H. Brit. t. 5.f.3. 

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

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

 Hudson. In dry stony pastures, by the sides of tiie Scottish 

 mountains, not unfrequent. Liglitfoot, Hooker. Near the lop 

 of Ben Lomond. 

 Perennial. June, Julij. 



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

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

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

 often somewhat ellij)tical, and in /3 the lower ones are short, 

 round, or lieart-shaped ; all j)ale beneatli. revolute, and curiously 

 marked with prominent mar-inal veins, as if crenate. Sdpulas 

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

 0|)posite to each /bo/67a//t-. ( 'luster cylindrical, interspersed with 

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

 structed much like the lust j but in the place of many of the 



