284 



central angle of the cell, orthotropal : capsule 3 — 4-oelled, 3 — 4-cleft, 

 introrsely dehiscent, cells 1 — 4-Beeded: seeds erect, ovate, acumi- 

 nate, testa coriaceous, smooth. — Perennial marshy herbs with a 

 bulbous rhizome : leaves long-petioled, linear-oblong, cordate at the 

 base, nerved, floating, scape obsoletely trigonal : involucre 1- leaved, 

 petioled, cordate : bracts cuneate : capsules smooth or echinate. 



(1) 8. Chutensb. (Lamr.) 

 Ident. Lour. Cooh. I. 270. Dalz. Bomb. flor. p. 248. 



8yn. Aponogeton monostachyon, Zinn. auppl. 214. Roxh.flor. 

 Ind. II. 210. 



Bot. Eepos. t. 406. Eoxb. Cor. I. t. 81. Eheede 

 Mai. xi. t. 15. 



Spec. Chab. Eoot tuberous : leaves radical, long-petioled, linear- 

 oblong, cordate at the base, pointed, entire, smooth, 3 — 5-nerved : 

 scapes as long as the leaves : spikes densely flovrered : , calyx of 2 

 •wedge-shaped concave leaflets : capsules smooth, pointed, 1 -celled, 

 4 — 8 -seeded : flowers small, purplish-'white with bluje anthers. 



Coromandel. Concans. Bengal. SiUiet. Tanks in the Dhar- 

 war and Belgaum districts. Flowering in the rains. 



(2) S. UNinjLATUM. (Voigkt.) 

 Ident. Voight Hort. Calc. p. 694. 



Syn. Aponogeton xmdulatum, Eoxb. I. c. 



Spec. Chae. Eoot tuberous, stoloniferous : leaves radical, sub- 

 mersed or floating, lanceolate, waved, 3 — 5-nerved : petioles com- 

 pressed, shorter ttian the leaves : scapes round, smooth : spikes 

 simple, crowded with flowers : capsules smooth, 1 — 2-seeded. 



Bengal, in sweet water, flowering in the fains. 



(3) S. ECHIKATTJM. (Bjoxh.) 



Ident. Eoxb. 1. c. p. 210 (under Aponogeton.) 



Spec. Chak. Leaves linear, cordate at the base : spikes single 

 and simple : capsules echinate : seeds about six. 



Circars, in shallow fresh waters. 



ORDER CLXI. BUTOMACEiG. 



Flowers hermaphrodite, regular : sepals 6, outer ones per- 

 sistent, inner ones petaloid, usually deciduous, imbricated in 

 Eestivation: stamens hypogynous,definite or indefinite: filaments 



