Alisma.] CLIT. ALISMACEH (WRIGHT). 209 
ovate; style slender, apical, rostrate, deciduous. Achenes ovoid- 
reniform ; endocarp thick, almost woody, with dorsal tuberculate ribs. 
Seed with thin, nearly smooth, testa.—Benth. Fl. Austr. vii. 185; 
Micheli in DC. Monogr. Phan. iii. 37 ; Hook.f. Fl. Brit. Ind. vi. 560; 
Durand & Schinz, Conspect. Fl. Afr. v. 486. A. apetalwm, Wall. Cat. 
4996. A. glanduloswm, Thwaites, Enum. Pl. Zeyl. 332. 
Upper Guinea. Niger Territory: “ Nupe?” Barter, 1062! 
Also in Northern India, Ceylon and Australia. 
2. LIMNOPHYTON, Miq.; Benth. et Hook. f. Gen. PI. iii. 1005. 
Flowers polygamous. Sepals 3, herbaceous, persistent, reflexed after 
flowering. Petals 3, larger than the sepals, deciduous. Stamens 6, 
perigynous ; filaments subulate, compressed; anthers linear-oblong, 
dorsifixed near the base. Carpels 15-20 on a small rather flat re- 
ceptacle, distinct, ovoid ; style ventral, short, thick, deciduous at least 
in the upper part; stigma small, capitate; ovule basal, anatropous. 
Achenes many, distinct, obovoid, turgid, dorsally 3-ribbed ; pericarp 
bony within, hollow on either side. Seed basal, oblong, compressed ; 
testa membranous; embryo curved; radicle thickened at the end.— 
Erect, robust, perennial, acaulescent, scapigerous herbs. Leaves erect ; 
petiole long, thick; lamina broadly sagittate, pellucid-dotted, with 
7-11 obliquely branched nerves. Scape thick. Flowers in verticils 
arranged in racemes or panicles, 3-bracteate at the nodes, the upper 
male, the lower hermaphrodite and mixed with a few male; pedicels 
thick, decurved after flowering. 
Species 1, extending into Tropical Asia. 
1. L. obtusifolium, Mig. 71. Ind. Bat. iii. 243. Rhizome short, 
densely covered with thick rootlets. Leaves all radical; petiole long, 
gradually tapering upwards, glabrous or sometimes puberulous, espe- 
cially in the upper part; blade sagittate, glabrous or puberulous; 
terminal lobe 2~7 in. long, 2-6 in. broad, triangular, obtuse, rarely 
acute or acuminate, nerves radiating from the apex of the petiole and 
Somewhat converging above; basal lobes separated by a sinus of 
50-140°, 2-7 in, long, 1-3 in. broad across the base, acuminate. 
Scapes solitary or several; lower branches up to 10 in. long, sometimes 
puberulous; bracts membranous, up to 1 in. long; flowers 4-15 in 
each whorl; pedicels up to 1} in, long, those of the male flowers more 
slender than those of the hermaphrodite. Sepals ovate, obtuse, 2 lin. 
long, many-ribbed. Petals white (Barter), narrowly ovate from a 
cuneate base. Stamens of the male flower larger than those of the 
hermaphrodite ; filaments dilated at the base, glandular-pubescent, half 
as long as the anthers; anthers broadly ovate, subsagittate. Carpels 
entirely absent in the male flowers, in the hermaphrodite flowers 15-20 
i 2-4 whorls, ovoid. Achenes obovoid, dorsally 3-ribbed or almost 
winged, 3 lin. long, 2 lin: broad ; style-base more or less persistent. 
Seed horseshoe-shaped ; testa thin, nearly ee Ahan Beitr. 
VOL, VIII, 
