1065 
POLYGONUM emarginatum. 
N otch-fruited Buckwheat. 
—e— 
OCTANDRIA TRIGYNIA. 
Nat. ord. PoLYGONEZX. 
POLYGONUM.—Calyx 5-rard 4-partitus, coloratus. Stamina 4-9. 
Stylus bi- aut trifidus. Stigmata capitata. Akenium calyce tectum. 
Herbee erecte, procumbentes aut volubiles ; rariüs suffrutices ; foliis alternis, 
basi vaginantibus, vagine interpetiolari adnatis; floribus axillaribus et 
terminalibus, sepiüs spicatis, paniculatis aut corymboso-paniculatis, albidis 
aut rubris. Kunth. synops. 1. 466. 
P. emarginatum ; folis cordato-sagittatis, caule erecto inermi, seminibus 
apice truncatis emarginatis alis cartilagineis. Roth. catalecta bot. 1.48. 
P. emarginatum. Willd. sp. pl. 454. Enum. hort. Ber. 454. Don prodr. 
Nep. 74. 
Canlis erectus, flexuosus, glaber. Folia petiolata, sagittato-cordata, 
subrepanda, margine scabriuscula: vaginá membranaceá, ovatd ; summis 
sessilibus, amplexicaulibus. Flores rosei, racemoso-paniculati. Calyx 5-par- 
titus. Stamina 10, glandulis hypogynis totidem. Stigmata 3. 
A native of China, where it is cultivated for the sake of 
its grain. It is a pretty, hardy annual, resembling the 
European Buckwheat in general appearance, but differing 
in the shape of the grain, and in the figure of the leaves. 
It is also closely allied to Polygonum tataricum, a species 
with much smaller flowers, and more decidedly sagittate 
leaves. P. chinense is another plant which this resembles 
in many respects; but that species has ovate leaves, 
scarcely at all cordate, except the upper ones, hispid 
peduncles, and flowers growing in roundish heads. 
This species is also found cultivated at Nitee, in Nepal, 
on the confines of the Chinese empire. 
Our drawing was made many years ago; but the 
