401 
(2) A: Rotunpiponya. (BR. W.). 
Fdent. Wight’s Hl. I. p. 206. 
Syn, Ammannia rotundifolia, Buch, Roub. fl. Ind. I. p. 425, 
Dec. prod. IIL. p. 79.--W. & A. prod. I. p. 306. 
Engray. Wight’s Icon, t. 258. 
Srzc. Cuar.. Herbaceous: stems diffuse, procumbent : branches: 
erect : leaves orbicular, opposite, sessile: spikes congested near the 
extremities of the branches: flowers solitary, in the axils of the 
sessile. bracts, red: bracts sub-orbicular or broad-ovate, pointed : 
bracteoles very minute: stamens much longer than the calyx: cap- 
sule 4-valved. : 
Neilgherries. Khasia mountains. Flowering in the rainy season. 
(8) A. tenuis. (R. W.) 
Edent. Wight’s Icon. vol. I. No. 13. 
Engrav. Wight’s Icon. t. 257. 
Srec..Cuar. Stems somewhat procumbent at the base, afters. 
wards erect, slender: leaves opposite, orbicular:. spikes terminal :: 
flowers. solitary, long-pedicelled, springing from the axil of a linear. 
bracts bractéoles large-; stamens included :, style. projecting : cap. 
sule ovate, 2-valved. 
Peninsula. Banks of the Penn tiver. 
(4) A. rrorrgunpa. (R. W.): 
Ident. Dalz. Bomb. flor. p. 96.—Hopk. Ic. pl. IX. p. 826, 
Syn. Nimmonia floribunda, Wight. 
Engraz. . Madr. Jour. VI. t. 20, 
Srsc. Cuar. Annual, erect, quite smooth: Teaves alternate, 
linear, upper ones cordate, stem-clasping : peduncles very slender, 
on terminal branches: racemes spiked, bracteated: bracteoles al- 
most as, long as the -ealyx x. Beaiens exserted : flowers pink, mos 
noicous.. 
On bare rocky ground on. the highest Ghauts. Sivapore. 
GENUS. HI. AMMANNIA. 
Tetrandria Monogynia. Sez: Syst: 
Deric. Named after John, Ammann, foenpenly 1 Professor of Bo« 
tany at St. Petersburgh. 
Gen. Cuan. Herbaceous plants growing in wet soil or water: 
stems quadrangular : leaves opposite, quite entire: flowers axillary, 
sessile or shortly peduncled : calyx, with bracts at. the base, 4—7- 
lobed: lobes flat or incurved, the sinus usually expanding inta, 
