etait 
304 SALICARIE X. AMMANNSIA. 
A. polystachia, Wall. L. n. 2094, is only distinguishable by the spikes more 
crowded, and not exceeding the leaves: it is perhaps only a variety. 
III. AMMANNIA. AHoust.; Lam. ill. t. 77. 
Calyx bracteolated at the base, more or less campanulate, 4—7-lobed, lobes 
flat or incurved, the sinus usually expanding into spreading accessory teeth 
or horns. Petals 4-5, or wanting. Stamens as many or twice as many as 
the calycine lobes. Ovary 2-3-4-celled. Style shortish or elongated. Stig- 
ma capitate. Capsule ovate-globose, membranaceous, either bursting trans- 
versely, the upper part falling away with the style, or opening by valves. 
Seeds numerous, attached to thick central placentas.—Herbaceous plants 
growing in wet soil or in water, all nearly quite glabrous. Stems 4-angled or 
occasionally terete when old. Leaves opposite, quite entire. Flowers axil- 
lary, sessile, or shortly peduncled, bracteolated at the base. 
.This genus ought either to be divided into genera, or into sections on a different 
principle from that adopted by authors. The genus or subgenus with 4 stamens, à 
4-celled ovary, and accessory teeth to the calyx, which ought to be viewed as the 
type of Ammannia, does not occur in India. Our first subgenus ought perhaps to be 
teh to Nesea, from which it only differs by the bracteoles at the base of the 
Sub-gen. 1. Calyx campanulate, shortly 4-7-lobed ; accessory horns con- 
spicuous and rather longer than the lobes. Petals 4-7. Stamens twice as 
many as the petals. Ovary 4—5-celled. Style filiform.— Diplostemon, DC. 
_ 994. (1) A. octandra (Linn. :) leaves linear-lanceolate, sessile, acutely au- 
ricled at the base: peduncles axillary, very short, 1-3-flowered : calyx 4- 
angled ; the angles slightly winged and scabrous, running out into the patent 
accessory horns: petals 4: stamens 8, as long as the corolla: capsule 4-cell- 
ed, the dissepiments usually remaining entire.—DC. prod. 3. p. 80 ; Spr. syst. 
1. p. 444 ; Roxb. Cor. 2. t. 183; fl. Ind. 1. p. 425 ; (ed Wall.) 1. p. 446; 
Wall.! L.n. 2097 ; Wight! cat. n. 1018.—A. coccinea, Pers. 
Subgen. 2. Calyx campanulate, shortly 4—5-lobed ; lobes broadly triangular 
or rounded ; accessory horns conspicuous, and longer than the lobes. Sta- 
mens 4-5, included. Ovary 2-celled. Style short, not so long as the ovary. 
Capsule included, 1-celled, opening transversely.— Flowers axillary some- 
what sessile.— Ditheca. 
935. (2) A. verticillata (Lam. :) leaves lanceolate, attenuated at the base: 
flowers almost sessile, 2-3 in the axils of the opposite leaves: calyx half- 
globose : petals 4-5, obovate.— Lam. ill. t. 77. f.3; DC. prod. 3. p. 79.—A. 
Caspica, Marsch. Bieb.; DC. prod. 3. p. 78 (partly).—A. lanceolata, Heyne m 
Wall.! L. n. 2106.—2 ; calyx glabrous or nearly so.— Wight / cat. n. 1019, 
1096.—Pluk. t. 356. f. 6.—58; leaves on the margin, upper part of the calyx, 
and accessory horns hispid with short hairs.— Wight! cat.n.1020. — a 
Very closely allied to A. ZEgyptiea, Willd. (from which A. Caspica ofLede- —— 
bour and several of the Russian botanists does not appear to be distinct) me o 
differs by having petals. The stems, as in the other species, vary from simpl — — 
to several times branched. : 
936. (8) A. cordata (Wight :) leaves oblong, upper ones cordate d sad ; : 
base, sessile: flowers sessile, 2-3 in the axils of the leaves: calyx half- 
= : ge 4, obovate.— Wall.! L. n. 6322 ; Wight! cat. n. 1021. - 
n 
| the specimens we have seen each pair of leaves is at a consi 
