Limnanthemum.~\ xcvu. GENTIANACEJE. (C. B. Clarke.) 131 



WESTERN HIMALAYA ; Kashmir ; Jacqnemont, Falconer. DISTEIB. 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 sxibsessile, 2 by 1 in. Peduncle 3-6 in. ; raceme 1-6 in. ; pedicels ^-\ in. 

 Sepals i in. Corolla ^~ in. Style % in. Capsule | ^ in., sometimes bifid nearly to 

 the base. Seeds ~ in. > 



15. LXaXNANTHElKUXK, S. P. Gmel. 



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

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

 5-4, oblong. Corolla rotate, deeply 5-4-fid ; 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, versatile. Ovary 

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

 ovoid or oblong, subindehiscent. 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. Xi. nyrnphaeoides, Link FL Portug. i. 344 ; leaves orbicular deeply 

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

 seeds large discoid. Griseb. Gentian. 341, and in DC. Prodr. ix. 138; Boiss. 

 FL Orient, iv. 66. Menyanthes nymphseoides, Linn. ; Engl. Sot. t. 217 ; 

 Gaertn. Fruct. ii. 157, t. 114. Villarsia nymphaeoides, Vent. Choix. n. 9. 



WESTERN HIMALAYA; Kashmir, alt. 6-9000 ft., Falconer, &c. DISTEIB. 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 f-1 in., 

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

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



2. L. cristatum, Griseb. Gentian. 342, and in DC. Prodr. ix. 139 ; leaves 

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

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

 the middle, capsule f in., seeds numerous scabrous. Wight III. 1. 157, bis Jig. 4; 

 Dalz. $ Gibs. Bomb. FL 158 ; Thwaites Enum. 205. Menyanthes cristata, 

 Eoxb. Cor. PI. ii. 3, t. 105, and FL Ind. ii. 28. .Villarsia cristata, Spreng. 

 S}/st. i. 582 ; Watt. Cat. 4353 ; Wight in Hook. Journ. Bot. i. 65, t. 123 ; Grijf. 

 NotuL iv. 88, t. 386 A. V. indica, Wall. Cat. 4352 A. &.Rheede Sort. Mai. 

 xi. t. 29. 



Throughout INDIA ; very common. DISTBIB. S. China. 



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

 0-1 ^ in. Pedicels 0-2 in., numerous, unequal. Calyx-lobes by ^ in. Corolla-lobes 

 ^'^ 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-seeded. Seeds in., cir- 

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



3. Xi. indicum, Thivaites Enum. 205 ; 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 }~ in., seeds numerous smooth or nearly so. Dalz. < Gibs. 

 Bomb. FL 158; Benth. FL Austral, iv. 378, icith all syn. (except Bot. Mag. t. 

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

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



K 2 



