390 
A CENSUS OF THE INDIAN POLYGONUMS. 
X. — ^BurmA: (6) Southern Shan Hills ; Saikan, Ahdul Khalil 1 
The writer agrees with Forbes and Hemsley in the opinion ex- 
pressed in their Enumeration of Chinese Plants^ under P. confusum^ 
(Jour, Linn, Soc., vol. xxvi, p. 336) that it is questionable whether 
Meisner’s Polygonum confusum is the same as Wallich’s Polygonum 
palaceum. 
In De Candolle’s Prodr omus^ vol. xiv, p. 125, Meisner quotes Wall. 
Cat. No. 1684, which is the type of Polygonum faleaceum, under 
Polygonum sphserostachyum. Under Polygonum confusum Meisner 
(Wall. Plant. Asiat. Rar.^ vol. iii, p. 53) quotes Wall. Cat. No. 1683, 
which is Polygonum sph^rostachyum, and he adds a note to the effect 
that Polygonum confusum grows along with and in the same places as 
Polygonum sphserostachyum^ from which one would infer that Meisner’s 
Polygonum confusum was not confined to Assam. Now if it were the 
same as Polygonum paleaceum^ it would be so limited. The writer is, 
therefore, of opinion that Meisner’s P. confusum is merely a form of 
Polygonum sphserostachyum. 
35. * Polygonum Bistorta Linn. (Sp. Plant. j 6 o). 
Rootstock thick, twisted ; annual stems glabrous, simple or with 
occasionally a branch-peduncle from the axil of one or two of the upper 
leaves; internodes long, 4-12 cm. glabrous or puberulous on 
the lower surface, lower leaves cordate with a very long petiole winged 
above, length of lamina to as much as 14 cm , breadth to as much as 8 
cm., length of petiole to as much as 20 cm., upper leaves subsessile 
on the top of the stipular tube, half-amplexicaule, cordate-lanceolate, 
2-5*5 long and 1-1*5 cm. broad. Stipules glabrous, tubular, 
about 5 cm. long, eciliate nervosely striate. Spike dense, cylin- 
drical, oblong-obtuse, 2*5-4*5 cm. long, about 2 cm. broad. Flowers 
large, on pedicels longer than the flowers, articulating just below the 
perianth, and arising in the axils of pale -brown, membranous, lanceo- 
late, entire, closely imbricating bracts. Perianth segmented almost to 
the base, segments 5 sub-equal, broadly oval, with 4-5 distinct veins. 
Stamens 8, filaments long slender exserted, anthers minute. Nut 
trigonous elongated, style long slender trifid above, stigmas capitate. 
VI.-— North-West Himalaya: Royle\ (21) Garhwal ; Binh 
Valley, 12-13,000 ft., Duthie^ No. 541 ! Kumari Pass, 
13,000 ft., Duthie^ViO. 
VII. — Nepal, Scully \ 
This in no way differs from the typical European or American 
plants, but none the less has been confused with the variety speciosa 
of Polygonum amplexicaule^ and with Polygonum sphserostachyum. 
It resembles the first in the size of the spike but differs altogether in 
