A CENSUS OF THE INDIAN POLYGONUMS. 
399 
lumped together as P, stagninum Ham., and all those with glabrous 
bracts as P* harbatum Linn. P. serrulatum Lagasc., which has also 
glabrous bracts, is distinguished from P, barbatum by its narrower, 
more linear-looking, and almost always glabrous leaves with a slightly 
cordate base or if not cordate at least never cuneate as in P, barba- 
turn. The leaves of P, serrulatum when dry are rather green in 
colour, those of P. barb alum dark- brown. With regard to the note 
under Polygonum stagninum in the Flora of British India, it may 
be of interest to record here that, in the Calcutta Herbarium, there 
is a sheet of undoubted Polygonum harbatum Linn., which is labelled 
P. hispidum, and has a short latin description appended, both name 
and description being in Buchanan-Hamilton’s own handwriting. The 
occurrence of this sheet certainly supports Meisner’s reference of 
Hamilton's Polygonum hispid um to Polygonum harbatum Linn. 
The Polygonum harbatum of Roxburgh’s unpublished leones is not 
Polygonum tomentosum Willd., which has short racemes and an 
orbicular nut and is well represented under its proper name amongst 
the leones. The Polygonum harbatum of Roxburgh’s leones is an 
excellent representation of Polygonum maeranthum Meisn., which is 
also well described as Polygonum harbatum in his Flora Indiea, 
where the reference to the twiggy racemes, so characteristic of 
Polygonum maeranthum Meisn., is unmistakeable. 
It may not be superfluous to give here the writer’s identification of 
all Roxburgh’s drawings of Polygonums in the leon. Ined., vol. vii 
Name on Roxburgh’s drawing. Name under which now known. 
104. Polygonum nutans • 
. i?ii35 = 
Polygonum lapathifolium Linn. 
105. PolygonurQ, lanatum . 
. /? 939 = 
Polygonum lanigerum By. 
106. Polygonum pilosum 
. 934 = 
Polygonum orientale Linn. 
107. Polygonum tomentosum * 
. 628 = 
Polygonum tomentosum Willd. 
108. Polygonum glabrum . . 
. 629 = 
Polygonum glabrum Willd. 
log. Polygonum tenellum . . 
. i? 1134 = 
? Polygonum fiaccidum Meisn. 
no. Polygonum barbatum . 
631 = 
Polygonum maeranthum Meisn. 
III. Polygonum rivulare . • 
. 630 = 
Polygonum barbatum Linn. 
1 12. Polygonum fiaccidum • . 
. R 1056 = 
Polygonum serrulatum Lagasc. 
1 13. Polygonum perfoliatum 
. 1412 = 
Polygonum perfoliatum Linn. 
114. Polygonum elegans Sol. Mss. 
. 632 = 
Polygonum plebejum R. Br. var. indica 
of F. b. 1 . 
40. Polygonum serrulatum 
Lagasc. 
I. — North-West Frontier: (i) Afghan border; Peshawar, 
Stewart, No. 149! Dera Ismail Khan, Harsukh^ 
Duthie’s No. 15733! (2) British Baluchistan; Quetta, 
Hamilton I (3) Indore ; Goona, King, No. 85 I 
IIL— Peninsular India: Talbot, No. 3140 1 
