Plants of the Puryab. Sees 631 
WATER PLANTS. 
HERBS WITH ALTHRNATE, STIPULATE, SIMPLE LBAVES. 
Polygonum 
Hydropiper, 
Polygonum 
flaccidum, 
Polygonum 
strigosum, 
Polygonum 
amphibium, 
PoLuyYGONACES. 
Peeieuk va ot, 
Kashmir. 
Polygonum 
lanigerum, 
Potamogeton 
indicus, 
NAIADACEA, 
BP Be Lavi 565; 
The Plains to 
5,000 ft. 
Potamogeton natans, 
NAIADACES. 
Bas vas 665: 
The Plains to 
5,000 ft. 
Kashmir. 
Potamogeton 
javanicus, 
NAIADACES. 
F: B. I. vi. 566. 
The Plains to 
7,000 ft. 
Simla (Collett), 
PETALS NONE. 
see Herbs, Erect, Alternate, Stipulate, Simple, Entire. 
see Herbs, Erect, Alternate, Stipulate, Simple, Entire. 
see Herbs, Erect, Alternate, Stipulate, Simple, Entire, 
medium size, perennial, partially submerged, rootstock 
creeping, woody ; leaves usually long-stalked and floating, 
or nearly sessile and aérial, blunt, “oblong oF lanceolate, 
stipules tubular, abruptly ended, smooth or hairy ; flowers 
4 in. long, red, in spike-like stout racemes, 1-2 in. long, 
main stalk stout, bracts more or less tubular, calyx 4-5 
fid, 4 in., not nerved, much longer than the nut, petals 
none, stamens 4-8, styles ss atin ovoid, biconvex, shining, 
see Prostrate Herbs, Alternate, Stipulate, Simple. 
medium size, submerged, rootstock creeping, stem 
cylindrical ; floating leaves 3-44 by 1-24 in., oblong ‘with a 
rounded — tip, leathery, lower submerged, leaves longer, 
narrower, papery, stipules 1-1} in. , free ; flowers small in 
spikes on a main stalk rising from a membranous sheath, 
bractless, sepals 4, concave, green, anthers 4, sessile, 
on the segments, carpels 4, sessile, :tigma nearly sessile, 
persistent ; drupelets small, smooth, seeds nearly kidney- 
shaped. 
like the last species, but leaves folded at the ingertion 
of the stalk, submerged leaves, if any, long, narrow, sessile, 
main flower stalk stout, stipules 4-5 in., much longer, 
drupelets larger, keeled at the back, shortly beaked. 
like the last species, but stem very slender, leaves 
4-14 in., ovate-oblong, pointed at both ends, stalk very 
short, submerged leaves linear, long-tipped, stipules 4-1 
in., main flower stalk slender, flower spikes not crowded 
with flowers, sepals round, drupelets 4 in.. stout, ribs 
toothed, beak stout, hooked; 
