882 XCIX. NYCTAGINE^. [Afi7'abilis 



a long tube. In moist primitive forests at the banks of the river 

 Luinha, wild and plentiful ; fl. June 1855. No. 5376. 



In Pungo Andongo it is abundant along streams : see note under 

 Polygonum lanlgermn R. Br. Welwitsch considered that this plant 

 must have been originally introduced into Angola (and probably into 

 all the other districts of Africa where it occurs) by the missionaries, 

 because its fruit, as also that of Ahrus, Canna^ Coke, etc., is used for 

 the so-called chaplets or crowns of roses. 



2. BOERHAVIA L. Sp. PL, edit. 1, p. 3 (1753). 

 Boerhaavia Vaill. Sermo, p. 50 (1718); Murr. Syst. Veg. p. 50 

 (1774); Benth. & Hook. f. Gen. PI. iii. p. 5. 



1. B. repens L., I.e. ; J. A. Schmidt, Beitr. Fl. Cap Verd. Ins. 

 p. 179 (1852). 



B. diffusa L., I.e. B. suberosa Chr. Sm. in Tuckey, Congo, 

 p. 249 (1818). B. depressa Chr. Sm., I.e. B. hereroensis Heimerl 

 in Engl. Bot. Jahrb. x. p. 9 (6 July 1888). 



ICOLO E Bexgo. — In dried-up pools at the river Bengo ; fl. and fr. 

 Jan. 1854. No. 5387. In muddy-sandy places, quite dry in winter, 

 flooded in summer, around Lagoa de Quilonde ; fl. and fr. beginning 

 of Sept. 1857. No. 5388. 



LoANDA. — In hot sandy places near Penedo ; fl. and fr. March 1858. 

 No. 5389. An annual herb, branched from the root ; branches prostrate, 

 virgate-ramulose ; flowers rosy. In sandy places flooded in summer, 

 in short grass between Penedo and Concei9ao ; fl. and fr. March 1854. 

 No. 5390- Annual, prostrate, with violet -coloured flowers. In muddy 

 places near Loanda ; fr. May 1854. Coll. Carp. 860. In sunny 

 sandy places near Penedo ; fr. May 1858. No. 5389. 



Pungo Andongo. — In sandy rocky parts of the praesidium ; fl. and fr. 

 March 1857. An annual prostrate herb, with discolorous leaves and 

 violet-coloured flowers. In dry, rocky-sandy places in the court-yard 

 of the residence of the governor of Pungo Andongo, plentiful ; fl. and 

 fr. April 1857. No. 5385. 



Cape de Verde Islands. — In the island of St. Vincent ; without 

 fl. or fr. Aug. 1853. No. 5381. 



2. B. adscendens Willd. Sp. PI. i. p. 19 (1797); Ficalho, PL 

 Uteis, p. 242 (1884) (Boerhaavia). 



Ambriz.— In fl. Nov. 1853. No. 5386. At Quisembo ; fl. and fr. 

 Nov. 1853. Called " Herba tostao." No. 5382. 



Barra do Dande.— a weak, slender herb, with greenish glaucescent 

 stems and whitish lilac flowers. In bushy moist hilly places near the 

 mouth of the river Dande ; fl. and fr. Nov. 1853. No. 5392. 



Loanda.— Cazanga island ; fl. March 1858. No. 5383. A perennial 

 herb ; root tubercular ; stems decumbent-ascending ; leaves somewhat 

 fleshy. In sandy maritime and hilly bushy places throughout the 

 district and also in the coast region at Penedo, plentiful ; fl. and fr. 

 May and June 1858. The Portuguese colonists call it " Herba tostao." 

 No. 5384. A decumbent herb or almost an undershrub ; rhizome 

 thick, woody-spongy, polycephalous ; stems prostrate, H to 3 ft. long ; 

 branches and branchlets ascending ; leaves somewhat" fleshy, pallid, 

 glaucescent, with the aspect almost of Atriplex ; flowers rather small, 

 pale violet in colour. In barren sparingly grassy hilly places to the 

 south-west of Loanda, at Praia da Zamba grande ; fl. and fr. end of 

 Dec. 1858. No. 5393. 



