Fagopyrum.] CXIX. POLYGONACEZ. (J. D. Hooker.) - 55 
l. F. esculentum, Moench Method. 290; annual, glabrous, leaves 
triangular-cordate acute, flowers in axillary and terminal peduncled sub- 
capitate many-fld. cymes, nut ovate angles acute. Meissn. in Wall. Pl 
As. Rar. iii. 63, and in. DC. Prodr. xiv. 1. 143; Bab. in Trans. Linn. Soc 
xvii. 117. F. emarginatum, Meissn. in DC. l c., ecl. var. B.; Bab. l.c 
118. Polygonum Fagopyrum, Linn.; Roxb. Fl. Ind. ii. 292; Wall. Cat 
1687. P. dioicum, Ham. mss. P. emarginatum, Roth Catalect. Bot. i. 48 : 
Don Prodr. 73. 
Cultivated in the KuasrA Mrs. throughout the HIMALAYA and WESTERN 
TIBET at elevations of 2000 to 12,000 ft., and in the NizaurRgi Hrirrs.—DISTRIB. 
Centre of Europe and N. Asia. . 
Stem 1-3 ft. Leaves 1-4 in. diam. (5 in very large specimens). Flowers pink 
or white, in heads or compound cymes 3-1 in. diam. Nut 4-4 in. long, pale. 
2. F. cymosum, Meissn. in Wall. Pl. As. Rar. ii. 63, and in DC. 
Prodr. xiv. 1. 144; puberulous, root perennial, leaves triangular, flowers 
secund on the long recurved branches of peduncled terminal and axillary 
cymes, nut ovate angles acute. Bab. in Trans. Linn. Soc. xviii. 119; Lindl. 
Bot. Reg. 1847, t. 26. F. triangulare, Meissn. Ul. c. F. emarginatum, var. 
unawarense, Meissn. in DC. l.c. 143. Polygonum cymosum, Treviran. 
Delect. Sem. Hort. Vratisl. 1824; Reichb. Ic. Exot. ii. t. 176. P. acutatum, 
Lehm. Cat. Sem. Hort. Hamb. 1890. P. triangulare, Wall. Cat. 1689. 
P. emarginatum, Wall. Cat. 1688 (not of Roth). P. dibotrys, Don Prodr. 
73. P. volubile, Turcz.in Bull. Soc. Imp. Nat. Mosq.1840, 77. P.rugosum, 
Herb. Ham. 
. TEMPERATE HIMALAYA; in woods, &c., from Kashmir to Sikkim, alt, 5-11,000 ft. 
Kuasa Mrs., alt. 4-5000 ft. —DrsTRIB. Yunan. : ; T 
A tall branching perennial-rooted sparsely pubescent species. Leaves large, ‘oki ro 
8-4 in. diam., angles acute or obtuse, upper usually narrow: and amplexicaul; pe di. 
long, slender, Inflorescence very lax, branches of panicle 2-5 in. long ; flowers pe t 
celled, white. Nut }—} in., more than twice as long as the perianth.—I suspect tha 
Meissner has described the fruit of tataricum under his F. triangulare. 
3. F. tataricum, Gertn. Fruct. ii. 182/t. 119, f. 6; annual, glabrous 
leaves very broadly triangular-cordate or -hastate, flowers- in axillary n: 
terminal peduncled subcapitate cymes, nut with 3 deep grooves and di att 
angles. Meissn. in DC. Prodr. xiv. 144. F. rotundatum, Bab. ind b 
Linn. Soc. xviii. 117 ; Meissn.l.c. Polygonum tataricum, Linn. ; Don T A 
74; Meissn. Monog. Polyg. 62, t. 4, 8; Dalz. & Gibs. Bomb. Fl. Suppl. 14. 
Cultivated throughout the HIMALAYA, at elevations of 3-12,000 ft.—DISTRIB. 
: urope and N. Asi . . 
Stem 2-3 ft., usually simple. Leaves 1-2 in. diam. Flowers white or pink. 
Nut èin. long, conico-ovoid, opaque, rounded, angles keeled towards the tip. 
5. RHEUM, Linn. 
Stout herbs with woody large roots. Leaves large, entire toothed or 
lobed; stipules scarious. ‘s clustered in panicled racemes usually 
2-sexual. P Sepals 5. Stamens 6-9. ° Ovar , 2-4-angled ; styles 2-4. stigmas 
dilated capitate or horseshoe-shaped. Nut 2-4-winged, MA sb ad. 
an the usually unchanged sepals. Embryo straight, cotyledons broad. 
Species 20, Central Asia and the Himalaya. 
_ * Stemless species. Flowers in a spike-like raceme. l 
l R. spiciforme, Royle Ill. 318, t. 78; leaves all radical thickly 
