52 CXIX. POLYGONACE®. (J.D. Hooker) [Polygonum. 
different from those of the other species of the section, and like that of Fagopyrum 
cymosum ; branches pubescent or villous, short or long and flowering towards the 
extremity only; flowers pale pink or red, shortly pedicelled ; bracts small, usually 
ovate,acute. Perianth 3-4 in. long, truly campanulate; lobes oblong, obtuse, subequal. 
Stamens 8, filaments very long. Nut pale, tip exserted.—A very distinct plant, which 
I have attempted to identify with the obscure P. Hagei, Royle. This, however, is 
described as having scabridly hairy branches and peduncles, very short petioles, and 
broad leafless panicles, and as a native of Nagkunda, whence various collectors have 
sent P. polystachyum, but none the P. campanulatum, the form of whose perianth 
could scarcely have escaped notice. 
Var. membranifolia; leaves large broad membranous, bright green, pubescence 
inconspicuous, cymes much smaller than the leaves.—Sikkim, in woods, alt. 
6—10,000 ft. ` 
Var. longipes; leaves elliptic ovate sparingly pubescent, branches of cymes dicho- . 
tomous long naked leafy at the base. 
Var. fulvida; leaves clothed beneath with dense matted fulvous tomentum. P. 
crispatum, Clarke in Journ. Linn. Soc. xv. 116 (where it is taken for Roaburgh's 
Coccoloba crispata, which is P. chinense). 
64. P. tortuosum, Don Prodr. 71; a low shrub, glabrous or finely 
pubescent, much dichotomously branched, leaves sessile coriaceous elliptic 
obovate or orbicular obtuse or acute, panicles short terminal dense-fld., nut 
trigonous included in the campanulate perianth. Meissn. in DC. Prodr. 
xiv. 1. 138. P. tatarieum, Wall. mss. 
WESTERN HIMALAYA; Garwlal, at Gangotri, Duthie; Kunawur and Lahul, alt. 
9-13,000 ft., A. Inglis, &c. WESTERN TIBET, alt. 15,500 ft., Strachey & Winter- 
bottom; Ladak, alt. 16,500 ft., S/ewart. 
Root woody ; branches 8-16 in., divaricate, geniculate, as thick as a goose- ill 
below, smooth, shining, red-brown. Leaves 1-2 in., pale green, crimson in autu n; 
nerves very slender; stipules short, truncate. Panicles 3-1 in. long, very dense-fid.; 
peduncles and very short pedicels pubescent. Perianth 4 in. long; lobes oblong, 
erect. Stamens 8, short. Nut pile, ovate.—A remarkable species. Meissner’s var. 
tibetanum is the common state of the plant, closely allied to and possibly a state of 
P. sericeum, Pall. Don's habitat of Nepal is no doubt an error, as Wallich's mss, name 
of P. tataricum, cited by Don himself, shows. , 
Var. spicata; flowers in solitary simple terminal and axilla i 
the leaves.—Dras, alt. 8-9000 ft., Thomson. "y spikes longer than 
**** Small herbaceous species with capitate or racemose panicles, 
65. P. sibiricum, Laxm. in Nov. Act. Acad. Petrop. xviii. (17 31, 
t. 7, £. 2; dwarf, quite glabrous, coriaceously fleshy, branches ane tre 
the long perpendicular root erect or decumbent, leaves. narrowly linear 
obtuse 2-auricled towards the base, flowers in capitate terminal panicles 
shorter than the leaves, nut enclosed in the perianth. Meissn. in DC. 
Prodr. xiv. 1. 139 ; Ledeb. FI, Ross. iii. 597. P. hastatum, Murr. Comm. 
gott v. (1774) 87, t 6; ent dt. ii. 80, t. 361. P. crassifolium, 
Turr. in Linn. Syst. Veg. ed. 14, ` . rumicifoli f . 
Moyen. 37, Hab bA Or. AA T. olium, Pall, (non Royle) 
WESTERN HIMALAYA; Kangra, alt. 11-12,000 ft., Edgeworth. WESTERN 
Trsat, common ; alt. 12-15,000 ft., Strachey & Winterboitom (Polyg. n. 48) 
Root several inches long, simple. Sfems or branches 1-6 in., stout (much longer 
in Siberian specimens). Leaves 1-3 by 1-4 in., flat, opaque, base cuneate being ' 
narrowed below the acute or obtuse equal or unequal auricles into a thick petiole ; 
midrib broad, nerves invisible; stipules short, membranous. Heads of flowers 
4-4 in. diam. (effuse in Siberian specimens) ; bracts minute ; pedicels short or long: 
Perianth yy in. long, subglobose, pink, segments broadly oblong. Stamens 5-8, 
