Ammannia. | LVIII. LYTHRACEX (HIERN). 477 
1. A. senegalensis, Zam.; DC. Prod. iii. 77. Glabrous. Stem 
erect or procumbent, usually tetragonal or 4-winged, sometimes sub- 
terete, 1-24 in. high. Leaves linear oblong or lanceolate, blunt at the 
base, usually auriculate-cordate and amplexicaul, $24 in. long, patent. 
Peduncles bearing one few or many pedicelled flowers, smaller towards 
the extremities of the stem and branches. Calyx campanulate, 8-ribbed. 
Petals 4, caducous or wanting, white or coloured. Stamens 4 or 8, 
exserted or as long as the calyx. Style long or short. Occasionally a 
flower is pentamerous.—Conf. A, madagascariensis, Byn.; Tul. Ann. Se. 
Nat. sér. 4, vi. 129 (1856). 
A variable species, growing in damp places, and extending to India, Java, and Brazil. 
The following forms may be noticed :— 
a. auriculata, Willd. (sp.). Sometimes glaucescent. Cymes much shorter than the 
leaves, bearing many rather large flowers. Stamens exserted. Style long. A. flort- 
bunda, Guill. and Perr., Fl. Seneg. i. 302. A. undulata, Fisch. and Mey. A. Prieu- 
reana, Guill. and Perr. l.c. 303. : 3 
B. jiliformis, DC. (sp.). Stem quadrangular, filiform, with few diffuse branches 3-6 in. 
long. Cymes lax. Stamens 4, : 
Y- riparia. Stem 14 in. high, erect, quadrangular, bifid near base. Leaves widened 
at middle and much auricled at base, amplexicaul. Stamens 4, long. Style long. 
Capsule large, not much exceeding the subtruncate calyx. : 
8. patens. Annual or biennial. Stem a foot high or more, quadrangular, with 
patent leaves and branches. Cymes dense, many-flowered, with short slender peduncles 
and pedicels, Stamens 4, short. Style short; ovary 2-celled. : 
&. multiflora, Roxb (sp.). Stem 6-24 in. high, quadrangular, with erect-patent 
branches. Flowers and capsule small. Cymes with long slender pedicels. Stamens 
4 or 8, lone. Style long. Petals rather large, reddish —A. pusilla, Sond. 
5. brasiliensis, A. St. Hil. Fl. Bras. Mér. iii. 135, t. 187. Annual. Stem erect or 
ascending, 3-13 in. high, quadrangular, Petals when present reddish, shorter than 
the calyx. Stamens 4, exserted; anthers yellow. Style long; ovary 2-celled. Cymes 
nearly equalling the leaves ; peduncles long and slender. 
Upper Guinea. Senegal. a. Perrottet! 331, 336; Bidjem! Roger! 8. Per- 
rey 3880 (fl. Sept. and Oct.). « Bidjem! 212; Boteler! Niger, «. Barter! 
aikie | 
Nile Laand. Kordofan. a. Kotschy ! 178, 435. Abyssinia, y. Schimper! 1742, 
adi, 8. Speke and Grant ! Senuaar, ¢. Kotschy! 
Lower Guinea. Mossamedes. a. Dr. Welwitsch!.2350, 0 ft. alt., fl. August. 
Congo, 3. Chr. Smith! Angola, 6. Welwitsch! 2352. Golungo Alto, 1000-2400 ft. 
alt. €. Welwitsch! 2351. Pungo Andongo, 2400-3800 ft. alt. «. Welwitsch! 2353. 
2354. Ambaca, 2900ft. alto. 2. Welwitsch! 2358, 2359. Pungo Andongo, 2400- 
$800 ft. alt. Z.’ Welwitsch ! 2360. Mossamedes. 
Ozamb. Distr. Zambesi. «. Meller! 
2. A. salsuginosa, Guill. et Perr. Fl. Seneg. 302. Glabrous. Stem 
frect, naked below, 1 ft. high. Leaves narrowly oval, blunt, somewhat 
ztrowed below the middle, with one central vein depressed on upper 
ace of leaf, 1-1 in. long. Cymes peduncled, bearing usually 3 pedi- 
celled flowers. Calyx with campanulate 8-ribbed tube, 4 depresso- 
deltoid lobes and 4 small cornua. Petals minute or wanting. Stamens 
» Inserted a little above base of interior of calyx, included. Style 
short, erect; stigma capitate. Capsule half covered by persistent calyx. 
OU PPer Guinea. Island Sor, near St. Louis, Heudelot! Perrottet! fl. Sept. and 
In the specimens of this plant from Tropical Africa, both at Kew and the British 
