A^escea] LVII. LYTHRACEiE. 375 



ones scarcely yV in. long, erect-spreading, bibracteolate at the base ; 

 calyx 8-striate, purplish, elongate campanulate, with 4 erect-connivent 

 broadly deltoid apiculate lobes and 4 alternating longer cornua, which 

 soon spread horizontally ; petals wanting or very rare ; stamens 4 ; 

 anthers yellow, didymous, rather large ; ovary 2 -celled ; placenta 

 central, somewhat compressed ; style short, not exserted, rather thick, 

 straight ; stigma capitate ; capsule globose, bursting in a circumsciss 

 or irregular manner. On sandy clay by artificial ponds (Represas) near 

 Concei9ao, sporadic ; fl. and fr. July 1854. No. 2366- On the margin 

 of the artificial pond at Museque deLuiz Gomes, not far from Loanda ; 

 only one specimen, 2 in. high, seen ; in fl. bud Feb. 1858. Apparently 

 belonging to this species. No. 2370. 



2. N. aspera Koehne in Engl. Bot. Jahrb. iii. p. 327 (1882). 

 Avimannia aspera Guillem. & Perrott Fl. Senegamb. (i,) p. 304 



(1833); Hiern in Oliv. Fl. Trop. Afr. ii. p. 480. 



MossAMEDES. — Cymes trichotomous ; pedicels uni-bracteolate at the 

 base ; calyx ebracteolate, membranous, greenish, afterwards rose- 

 coloured ; petals wanting. In sandy-muddy marshes along the banks 

 of the nearly dried-up river Bero, near Cavalheiros ; fr. and few fl. 

 August 1859. No. 2361. An annual herb, a hand high, with several 

 slender stems ; flowers rosy, trichotomously corymbose. At the sandy 

 banks of the river Bero ; seeds July 1859. Coll. Carp. 581. 



3. N. andongensis Welw. ex Hiern in Oliv. Fl. Trop. Afr. ii. 

 p. 473 ; Koehne in Engl. Bot. Jahrb. iii. p. 328 (1882). 



PuNGO Andongo. — An annual bright-green herb, with the habit 

 of a Lythrum ; rhizome creeping ; stem reddish, tetragonal ; leaves 

 herbaceous, subglaucescent to deep-green ; calyx-lobes ciliate, patent 

 at the time of flowering ; petals 4, or rarely 3 or 2, of a deep-rose or 

 reddish colour, with a rather long claw ; stamens 4, sub-exserted ; 

 anthers yellow, with tumid almost globose-ovoid cells. In swampy 

 stations near the cold springs on the higher parts of the gigantic 

 volcanic rocks towards the eastern side of the prcEsidium of Pungo 

 Andongo; fl. and fr. March 1857. No. 2367- An erect or ascending, 

 deep-green, annual herb ; branches opposite ; leaves minutely crustaceo- 

 serrulate ; flowers tetramerous, rosy ; calyx urceolate-campanulate, 

 8-striate ; lobes 4, broadly deltoid, acute, erect-connivent : cornua 4, 

 longer than the calyx-lobes, erect-patent, at the apex ciliate with 

 elongated rather rigid papillae ; petals 4, obovate-spathulate, longer 

 than the calyx, rosy, very fugacious ; capsule bursting irregularly. In 

 marshy places with short herbage at the banks of the river Cuanza, 

 near Sansamanda and Mopopo ; fl. and fr. April 1857. No. 2368. 



4. N. sarcophylla Koehne, I.e., p. 328 (1882). 

 Ammaniiia sarcophylla Welw. ex Hiern, I.e., p. 479. 



MossAMEDES. — A rather fleshy annual herb, branched from the base; 

 stems thick ; branches prostrate or decumbent, here and there rooting 

 at the nodes ; leaves rather rigid, glaucescent, ovate-lanceolate, cordate- 

 auriculate at the base ; auricles rotundate-obtuse ; flowers sessUe. In 

 moist sandy places near the banks of the river Bero, near Cavalheiros, 

 a few specimens ; in late fl. and fr. July and Sept. 1859. No. 2365. 

 Coll. Carp. 578, 579 (part) and 680. In a moist sandy spot near the 

 river Bero then almost dried up, in company with Marsilea diffusa 

 Lepricur ; only one specimen gathered ; fl. and fr. beginning of August 

 1859. No. 2373. 



