454 
Gen. Car. Aquatic floating herbaceous plants, with their 
upper parts emersed while flowering: flowers moncecious or bisexu- 
al, rarely dizcious. Mazz: Calyx 4-partite: petals 4, caducous: 
stamens 4, 6 or 8. Femare; Calyx cohering with the ovary ; limb 
4-lobed: petals 4, smaller than in the male, very cadttcous, often 
wanting: stamens when present without anthers: ovary 4-eelled: 
styles wanting: stigmas linear-oblong, comptessed : fruit 4-lobed, 
consisting of 4 carpels, cohering by their inner angles and enclosed 
in the calyx-tube, each carpel nut-like, indehiscent, 1-seeded. 
(1) M.Inpicum. (Wiltd:) 
Ident. W. & A, prod. I. p. $39.—Dec, prod. If. p. 68. 
Src. Cuan. Leaves in fours, verticillate, lower ones divided 
pinnately into capillary Iébes, upper gradually narrower and pinna- 
tifid, with the undivided portion broadet, uppermost cunedte-lanceo+ 
date, toothed or alrnost quite etitire: flowér's verticillate: stamens 8S 
anthers oblong: femele flowers with 4 petals: carpels wrinkled: 
and tubercled. ; ; 
Coromandel. Neilgherries. Flowering in the rainy season. 
(2) M, revRanprum. (Rowb,) 
Ident. Roxb. fl. Ind. I. p. 451.—W. & A. prod. I. p. 339. 
Dec. prod. IIT. p. 69. 
Spzc, Cuar. Leaves vertieillate: lower ones pinnately divided 
into capillary segments, upper ones much the smallest, pinnatifid ; 
flowers verticillate, white: stamens 4; carpels nearly smooth and 
even, blunt on the back. 
Peninsula, flowering in the rainy season. 
(3) M. tusercutatom. (Roxd.) 
Ident. Roxb. fl. Ind. I. p. 451. 
Spec. Cuar. Leaves verticilled, pinnatifid or acutely serrate: 
flowers verticilled, sessile, one in the axil of each léaf, small, bright 
red. : 
_ Borders of Jake and ather moist places near Calcutta. Flowering 
nearly all the year. 
ORDER LXVII. CALLEIFRICHACEZ. 
Calyx very small, surrounding the ovary: petals wanting: 
stamens 1, rarely 2: filamients filiform, grooved in the inside: 
anther kidney-shaped, 1-celled: ovary solitary, 4-cornered, com- 
pressed, 4-celled : ovules solitary, suspended : stigmas 2, pap- 
pulose inside: fruit 2-celled, 2-seeded: seeds peltate. 
