1124 BENGAL PLANTS. [Ruppia. 
2344. Ruppia ROSTELLATA Koch; F, B. I. vi. 568. 
! ; E. Bengal; Sundribuns. 
A submerged aquatic, plentiful in brackish water. 
1022. Zanichellia Linn. 
Herbs, aquatic, usually in brackish water, with slender root- 
stock and stem; leaves linear, with stipular sheaths. Flowers 
inute, moncecious, both sexes in m ranous sheath. ¢ 
0. Sh i 
2-3-celled. ¢ Perianth cupular, hyaline. Carpels 2-9, sessile ; 
ove long, slender; stigma oblique, bipra erenate; ovule 
solitary, pendulous, orthotropous. Frwit of sessile or stipitate, 
ae crested achenes, usually 4in number. See pendulous ; 
a thin; embryo subcylindric, with the cotyledonary’end folded 
ees on itse 
2345. Zastenstt PALUSTRIS Linn. sub-sp. PEDICELLATA Hook. f.; 
am 3 i. 568 
Chota Ke ; Beh 
A submerged darindd hot very common in our area. 
1023. Najas Linn. 
Herbs; aquatic, submerged ; stems branched, filiform, smooth or 
muricate ; leaves opposite, alternate, or whorled, linear, entire or 
toothed. Flowers 1-sexual, monccious or dicecious, minute, 
axillary. ¢ Perianth double, outer tubular or inflated, entire or 
4-fid, inner hyaline. Stamen solitary, adnate to inner perianth- 
tube, apiculate or cuspidate, 1-4-locular. ¢ Perianth 0, or hyaline 
and adnate to carpel. Carpel solitary, sessile, 1-ovuled; stigmas 
2-4, slender; ovule basilar, erect, anatropous. Fruit an oblong 
achene. Seed erect; testa very thin; embryo straight. 
Dicecious ; leaf-teeth large, few, back of leaf and internodes ees oi, 
teeth ; serthes 4-locular arind. 
Moneecious ; leaf-teeth rather numerous, back of leaf usually “ioe! 
teeth :— 
om bro female flowers in a spathe ; leaf-teeth long ; anther 4- lowular 
[p. 1 indie 
sande nate only in a sheath :—[p. 1125] 
tAnther 1-locular :—{p. 1125] 
Flowers solitary ; areolw on testa broader than long .....-..- minor. 
Flowers aggregated ; areole on testa as long as broad ...Kurziana. 
aN i Seo ere ete ear 
