372 LVII, LYTHRACEZ. [Potala 
Quibinda ; seeds, March 1857. Coun. Carp. 577 (part). In_ the 
deeper pools, in company with Thalia Welwitschii Ridl. (Welw. Herb. 
No. 6445), near Mutollo, Serra das Pedras de Guinga ; fl. and fr. March 
1857, No. 2343. 
5. R. filiformis Hiern in Oliv., l.c., p. 468; Koehne, /.c., p. 167. 
Suffrenia filiformis Bellardi in Mem. Acad, Sc. Furin vii. p. 
445, t. 1, f. 1 (1804). 
Forma Hiernii Koehne, J.c., p. 168. 
Pungo ANDONGO.—Widely cespitose, half immersed in drying-up 
pools about Lagda de Quibinda,; fl. and fr. March 1857 ; specimens 
quite like the Italian form. No. 2342. In marshes, near Quibinda ; 
seeds, March 1857. Coty. Carp. 577 (part). On Ilhas de Calemba in 
the river Cuanza ; at the edges of pools, in clumps, rather scarce ; fl. 
and fr. March 1857 ; specimens with a few narrow submerged leaves. 
No. 2341. 
Houitta.—A dwarf annual loosely tufted herb, scarcely 14 in. high ; 
calyx mostly purple ; capsule at length dark-purple ; leaves truncate 
or abrupt, scarcely bifid at the apex ; in fruit almost exactly resembling 
Tillea muscosa L. In sandy pastures, flooded in summer, along the 
river Monino, in some quantity, but seen only in one spot ; fl. and fr. 
beginning of April 1860. No. 2338. 
6. R. fontinalis Hiern in Oliv., U.c., p. 468; Koehne, .¢., p. 172. 
Punco AnponGo.—An elegant herb; stem creeping, giving off 
fibres at the nodes ; branches erect ; leaves bifarious, glaucous-green ; 
flowers always much shorter than the floral leaves ; calyx 4-cleft with 
acute and spreading deltoid teeth and limb inside of a deep rose colour ; 
petals 4, ovate-subcordate or obovate-spathulate, shortly clawed, 
longer than the calyx ; rather fleshy ; stamens 4, exserted ; ovary more 
or less conical, 4-celled, septa at length evanescent ; style filiform, 
exserted ; stigma capitate. Abundant in marshes along the banks of 
clear slowly flowing streams, near Candumba and Mutollo ; fi. and 
young fr. in March 1857. No. 2347. In muddy marshes near Lombe 
and also near Quisonde ; fr. March 1857. No. 2346. 
7. R. nummularia Welw. ex Hiern in Oliv. Fl. Trop. Afr. ii. 
p- 468; Koehne in Engl. Bot. Jahr. i. p. 177 (1880). 
Huitita.—A slender, creeping, apparently perennial little herb, 
glaucous-greenish, growing after the fashion of Glaux maritima L., the 
whole plant exactly with the habit of Thymus ; flowers lilac or violet- 
purple. In nearly dried-up places at the banks of the river Quipum- 
punhime, between Mumpulla and Nene, abundant, but seen in only 
one spot; fl. and young fr. Oct. 1859. No. 2344. An elegant, glaucous- 
green, rather fleshy, apparently perennial herb, growing on sufficiently 
broad tufts ; stenis erect, crowded ; flowers tetramerous, of a bright- 
rose colour; calyx petaloid, rosy, bi-bracteolate, deeply lobed ; lobes 
erect, deltoid, equal; petals obovate, twice the length of the calyx, 
shortly clawed, persistent for a long time and marcescent ; stamens 4 ; 
stigma capitate ; capsule valvate, at length 1-celled. In marshy places 
along the banks of streams and in the nearly dry beds of the streams 
about Lopollo, at an elevation of 5000 to 5500 ft., abundant ; near 
Catumba, fl. and young fr. Jan. 1860. The flowers are dimorphic, 
some flowers having the stamens exserted and longer than the style, 
while others have the style longer than the stamens. No. 2345, 
