Ammannia. tetrandria monogynia. 425 



AMMANNIA. Schreb. gen. N. 206. 

 Corol four-petal led, or none ; when present inserted in the 

 plaited mouth of the calyx which is from four to eight tooth- 

 ed. Capsule superior, from one to four celled. Seeds numer- 

 ous. 



1 . A . rotitn difo lia. B u ch . 



Diffuse. Leaves opposite, round, entire. Floioers spiked, 

 petals oval. Capsule four-lobed. 



Plants sent from L?/kshmee-poora and Malda, where they 

 are indigenous, flowered in the Botanic garden during the 

 cold season of 1797. 



Stems several, creeping, with ascending apices, round, 

 smooth, and succulent; whole plant spreading from six to 

 eight inches. Leaves opposite, sub-sessile, orbicular, en- 

 tire, smoolh, and succulent. Spikes terminal and axillary, 

 the terminal often compound. Bractes opposite; exterior 

 cordate; interior lanceolate, and often very small, one-flow- 

 ered. Flowers numerous, small, pink-coloured. Calyx four- 

 parted, divisions obtuse. Corol of four, large, oval, sessile, 

 pink-coloured withering petals. Capsule hid in the bottom 

 of the remaining calyx, and corol, four-lobed. Seeds numer- 

 ous. 



2. A. octandra. Linn. sp.p\ed. Willd. 679. Roxb. Corom. 

 pl.2.N.VS3. 



Annual, erect, brachiate, four sided. JLeares sessile, nar- 

 row-sagittate ; peduncles from two to three flowered ; flowers 

 octandrous. Capsule four-celled. 



Ammannia octandra. Suppl. Plant, p. 127. 



Annual, a native of moist places; appearing in the rainy 

 and cold seasons. 



Root fibrous. Stem straight, four-sided, smooth ; from one 

 to three feet high. Branches numerous, cross-armed, and 

 like the stem. Leaves opposite, sessile, linearly-sagittate, 



