jMnnantheniwm.] xcvii. GENTiiuACE^. (C. B. Clarke.) 131 



Western Himalaya ; Kashmir; Jaogmrmnt, Falconer. — Distbib. Europe, N.Asia, 

 and N. America, the Caucasus, Amurland and Japan. 



Stems covered by lax sheathing of petioles, the lower leafless. Petioles 3-8 in. ; 

 leaflets suhsessile, 2 by 1 in. JPecUmole 3-6 in. ; raceme 1-6 in. ; pedicels ^ in. 

 Sepals I in. CoroUa, ^ in. Style \ in. Capsule ^ in., sometimes bifid nearly to 

 the base, Seeia ^ in. 



16. IiXBXNANTKEBXTTIlI, S. P. Qmd. 



Ajiuatic herbs. Leaves deeply cordate, entire or sinuate, alternate or sub- 

 opposite. Peduncles clustered at the nodes ; flowers white or yellow. Sepds 

 6-4, oblong. Corolla rotate, deeply 5-4-fld'; tube often with glands opposite 

 the lobes, sometimes hairy in the throat ; lobes valvate in bud, ciliate, fimbriate 

 or with an oblong longitudinal fold down their middle. Stamens 5-4, on the 

 corolla-tube, filaments linear short ; anthers hastate-oblong, yersatile. Ovary 

 1-celled, placentsB not intruded ; style short, stigma of 2-3 plates. Capsule 

 ovoid or oblong, subindehiseent. Seeds numerous, orbicular, compressed, either 

 slightly marginate, or nearly flat discoid ; testa close, somewhat spongy finely 

 reticulated, sometimes covered with papillose glands. — Species 14, in fresh 

 water, throughout the Tropical and Temperate Zones. 



1. Ii. nymphaeoides, Link Fl. Portug. i. 344 ; leaves orbicular deeply 

 cordate, umbels axillary, corolla yellow lobes crenulate-ciliate, capsule 1 in., 

 seeds large discoid. Oriseh. Gentian. 841, and in DC. iVodr. is. 138; Boiss. 

 Fl. Orient, iv. 66. Menyanthes nymphseoides, Linn. ; Engl. Bot. t. 217 ; 

 Gaertn. Fruot. ii. 157, t. 114. Villarsia nymphseoides. Vent. Choix. n. 9. 



Western Himalaya ; Kashmir, alt. 6-9000 ft., Falconer, &c.— Distbib. From W, 

 and Central Europe to China. 



Stems long, floating, rooting at the nodes. Leaves subopposite, 1-2 in. diam. ; 

 petiole 1-2 in. Pedicels 1-4 in. Calyx-lobes 5, | by -^ in. Corolla-lobes |-1 in., 

 without any longitudinal fold down the middle, sparingly ciliate. Capsule ellipsoid, 

 acute, scarcely dehiscent. Seeds ^ in. diam., lenticular, ellipsoid, winged. 



2. Xi. cristatum, Ch-iseh. Gentian. 342, and in DC. Prodr. ix. 139 ; leaves 

 orbicular deeply cordate, pedicels densely fascicled at the nodes, coroUa white 

 yellow towards the base within lobes 5-6 entire with a longitudinal fold down 

 the middle, capsule | in., seeds numerous scabrous. Wight lU. 1. 157, his Jig. i; 

 DaU. Sf- Gibs. Bomb. Fl. 168 ; Thwaites Enum. 206. Menyanthes cristata, 

 Poxh. Cor. Fl. ii. 3, t. 105, and Fl. Ind. ii. 28. Villarsia cristata, Spreng. 

 Si/st. i. 682 ; WaU. Cat. 4363 ; Wight in Hooh. Jovm. Bot. i. 65, t. 123 ; Gi-if. 

 Notvl. iv. 88, t. 386 A. V. indica, Wall. Cat. 4362 A. a,.—Mheede Sort. Med. 

 xi. t. 29. 



Throughout India ; very common. — Distrib. S. China. 



Stems long, floating, rooting at the nodes. Leaves 1-3 in. diam. ; petiole often 

 0-lJ in. Pedicels 0-2 in., numerous, unequal. Calyx-lobes l by i in. Corolla-lobes 

 J-J in. ; tube with a ring of white hairs round the throat. Stigma 2-4- (often 3-) 

 ridged; placental lines 2-3. Capsule subglobose, 10-20-seed6d. Seeds -^ in., cir- 

 cular, very thick, lenticular, margins subacute, scabrous. 



3. Ii. indicum, Thwaites Fnum. 206 ; leaves orbicular deeply cordate, 

 pedicels densely fascicled at the nodes, corolla white yellow towards the base 

 within, lobes fimbriated densely papillose without a longitudinal fold down the 

 middle, capsule j-^ in., seeds numerous smooth or nearly so. Dalz. 4' Gibs. 

 Bomb. Fl. 168; Benth. Fl. Austral, iv. 378, with all syn. (except Bot. Mag. t. 

 658) ; Bmss. Fl. Orient, iv. 65; Griseb. Gentian. 343, and in DC. Prodr. ix. 

 139?. L. Eleinianum, Griseb. Gentian. 344, and in DC. Prodr. ix. 139; Seem. 



K 2 



