446 
A CENSUS OF THE INDIAN POLYGONUMS. 
X. 
Species endemic to the sub-sub- 
area 1 
Species distributed to other sub- 
sub-areas . , , . I 
Species with an extra-Indian distri- 
bution ..... 20 
-Burma. 
Section.^IX Echinocaulon* 
(63) Polygonum birmanicum Gage, 
Section X.—Aconogon, 
-(67) Polygonum rude Meisn. 
' Section I II .~~‘A'vicularia. 
(16) Polygonum plebejum R. Br. 
Section IV. — Amhlygonon. 
(17) Polygonum orienlale 
(18) Polygonum tomentosum Willd. 
(ig) Polygonum limbatum Meisn. 
Section V. — Tovara. 
(20) Polygonum virginianum Linn. 
Section VI.—Bistorta. 
(24) Polygonum paleaceum Wall. 
Section Vll.^Persicaria. 
(30) Polygonum glabrum Willd. 
(32) Polygonum lanigeruni R. Br, 
(33) Polygonum lapathifolium Linn. 
(35) Polygonum minus Huds. 
(37) Polygonum viscosum Ham, 
(38) Polygonum stagninum Ham. 
(39) Polygonum barbatum Linn. 
(40) Polygonum serrulatum Lagasc. 
(43) Polygonum Hydropiper Linn. 
(44) Polygonum flaccidum Meisn. 
Section Vlll.—Cephalophilon, 
(48) Polygonum alatum Ham. 
(55) Polygonum chinense Linn. 
Section I X.—Echinocaulon. 
(59) Polygonum perfoHatum Linn. 
(61) Polygonum strigosum R. Br. 
Total ©f Burmese species ; 32 , or 27*8 per cent. 
