Jussica| LVIII, ONAGRACE, 379 
purplish colour, an inch in diameter at the base, very narrowly winged 
and angular by the decurrence of the leaves; branchlets swelled at 
their origin ; leaves elliptic-lanceolate, very shortly petiolate, base with 
two red glands ; flowers yellow ; calyx-lobes with red glands at the 
base; petals ovate, rather obtuse, very fugitive. In moist places by 
the road to Quicuxe ; fl. and fr. end of March 1858. No. 4621. 
Lisongo.—An annual, erect herb, 1 to 14 ft. high, sparingly 
branched ; leaves yellow, rather small for the genus. In swamps 
about lakes on the left bank of the river Lifune, in company with 
Hydrocotyle asiatica L. (Welwitsch Herb. 620) and Azolla pinnata Br. 
(Welwitsch Herb No. 37) ; fl. and fr. end of Sept. 1858. No. 4460. 
MossaMEDES.—At the banks of the river Bero, near Cavalheiros ; 
fl. and fr. end of June 1859. No. 4473, Annual herb, 1 to 24 ft. 
high, erect ; abundant in moist sandy places along the banks of the 
river Bero; fl. and fr. July 1859. No. 4474. Flowers yellow ; 
abundant in moist sandy places along the banks of the river Bero, 
ny an descending to the mouth of the river ; fl. and fr. July 1859. 
o. 4476. 
2. J. linifolia Vahl, Eclog. Amer. ii. p. 32 (1798) ; M. Micheli, 
pp. 17, 20 (1874); non Oliv. Fl. Trop. Afr. ii, p. 489. 
J. acuminata Benth. in Hook. Niger Fl. p. 343 (1849); C. 
Wright in Journ. Linn. Soc. x. p. 478 (1869) ; Oliv., Ze, p. 489 ; 
non Swartz. 
MossaMEDES.—An annual, patently branched herb, a foot high ; 
bloodred-purple throughout except the yellow petals; stem leaves 
and calyx rather fleshy. In damp sandy places at the mouth of the 
river Bero, rather rare; fl. and young fr. beginning of August 1859. 
No. 4478. 
3. J. pilosa H. B. & K. Nov. Gen. vi. p. 101, t. 532a (1828) ; 
Oliv., Zc. p. 488 ; M. Micheli, Zc. pp. 17, 20. 
Barra Do BEenco.—A herb, almost shrubby, branched from the 
base ; branches ascending, elongated ; flowers yellow. At the swampy 
edges of the Lagéa de Foto, in company with Pistia Stratiotes L. ; fl. 
and fr. Sept. 1857. No. 4463. 
4, J. repens L. Sp. Pl. edit. i. p. 388 (1753); C. Martins, 
Mém. Juss. p. 22, tt. 1-4 (1866); M. Micheli, Zc., pp. 18, 21. 
J. diffusa Forsk. Fl. Aigypt-Arab. p. 210 (1775); Oliv. Fl. 
Trop. Afr. ii. p. 488. 
Barra pO DanpE and LisonGo.—An apparently perennial herb, 
growing by the edges of lakes and pools, sometimes prostrate and 
creeping with long stolons rooting at the nodes, at other times floating 
and stellate after the manner of Utricularia stellaris L. ; branches 4 to 
10 ft. long, smooth, purple, more or less straight, forming floating 
meadows ; leaves rather shining ; corpuscula stellately arranged around 
the nodes of the stem, linear-elliptical, spongy, soft, of a very bright 
rose-colour in the living state; flowers yellow (observed only on the 
terrestrial form), rather large for the genus ; peduncles 1 to 14 in. 
long, as well as the tube of the calyx woolly-hirsute. In swamps by 
lakes along the banks of the rivers Lifune and Dande, especially 
floating on the lake near Bombo ; fl. Sept. 1858. No. 4465. 
Punco ANDoNGO.—In pools near Sansamanda, near the river Cuanza, 
in company with Aponogeton leptostachys E. Mey., sparingly ; fl. May 
1857. No. 4466. A decumbent, stoloniferous, little herb, apparently 
