AUsma.] clii. alismace^e (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. 1H5- 

 Micheli in DC. Monogr, Phan. iii. 37 ; Hook. f. Fl. Brit. Ind. vi. 5G0 ; 

 Durand & Schinz, Conspect. Fl. Afr. v. 48 G. A. apetalum, Wall. Cat! 

 4996. A. glandulosum, Thwaites, Enum. PI. Zeyl. 332. 



Upper Guinea. Niger Territory : " Nupe? " Barter, 1062 I 



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. Li» obtusifolium, Miq. Fl. 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-Q 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 Ij 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 1 5-20 

 in 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 smooth. — Schweinf. Beitr. 



