Rumex.] POLYGONACE. Al 
and with a conspicuous oblong dark-coloured tubercle on the back : 
tips acute ; margins very narrow, entire or with one or two short 
straight teeth or spines. Styles terminal. 
Edges of tanks near Banda in Bundelkhand (Mrs. Bell). Distr. : 
Bengal, Behar, Khasia Hills and in the Deccan Peninsula. This 
species is very similar to the European R. conglomeratus, but the leaf 
is panduriform, and the tips of the valves are acute. 
2. R. dentatus, Linn. Mant. ii, 226; Royle Ill. 313; F. B. I. 
», 59; Watt E. D. ; Prain Beng. Pl. 889 ; Cooke Fl. Bomb. ti, 518. 
An erect annual, 1-2 ft. high. Stems grooved, glabrous, usually tinged 
with red. Leaves 3-4 in. long, oblong, obtuse, glabrous, base rounded or 
cordate, petioles of radical leaves up to 24 in. long. Flowers shortly 
pedicelled, 2-sexual, arranged in distinct leafy or leafless whorls. 
Perianth }-% in. long; inner segments broadly ovate, reticulate- 
veined, much enlarged in fruit and with an ovoid-oblong smooth 
tubercle on its back, margins irregularly toothed or pectinate ; the 
teeth numerous, short, straight, not hooked. Nutlets ¥, in. long, 
acutely 3-gonous or almost winged. 
N. W. India (Royle), Dehra Dun (King), Sub-Himalayan tracts of N. 
Oudh and Gorakhpur (R. Thompson and Duthie), Moradabad (T. 
Thomson), Bundelkhand (Mrs. Bell). DistrrB.: From Bengal and 
Assam to W. and §. India; also on the Himalaya up to 1,000 ft. in 
Kumaon and extending to China. Hooker alludes to a specimen 
from Oudh in which the inner segments of the perianth are very 
narrowly winged, thus showing a transition to R. nigricans. The 
roots yield a dye which is said to be used in Sind. 
3. R. nepalensis, Spreng. Syst. ii, 159; F. B. I. v, 60; Collett Fl. 
Siml. 428. 
Annual or occasionally perennial. Root sometimes with tuberous 
fibres (Boiss.) Stems stout, erect, 2-4 ft. high, branched. Leaves at 
the base of the stems up to 14 in. long, oblong or triangular-ovate, 
acute or obtuse, base cordate, petioles very slender ; upper leaves 
sessile or nearly so, narrowed to the base. Whorls distant, on elongate 
nearly leafless racemes. Fruiting sepals orbicular-ovate, broadly 
winged, one or more with an oblong tubercle on the back, wing 
pectinately toothed and strongly reticulate, teeth usually with hooked 
tips. 
Dehra Dun (King), and in the Sub-Himalayan tracts of N. Oudh and 
Gorakhpur (Duthie). Distris.: Temp. Himalaya from Bhutan to 
