Ritchiea] ix. cappabidace^e. 33 



6. RITCHIEA Br. ; Benth. & Hook. f. Gen. PI. i. p. 110. 



1. R. fragrans Br. ex Walp. Rep. Bot. Syst. i. p. 201 (1842) ; 

 Oliv. Fl. Trop. Afr. i. p. 100. 



Golungo Alto. — A widely scandent shrub; branches flexuous, strong, 

 scattered with little white warts ; flowers greenish-yellow, or in shaded 

 places almost quite green, terminal, and also frequently axillary. In 

 the more elevated dense thickets near Sange, around the spring of 

 Capopa, Sob. de Bumba, rare and always sporadic ; fl. and young f r. 

 end of August 1855. No. 987. 



Zenza do Golungo. — A weak scandent shrub, 5 to 7ft. high; branches 

 soon twisted, pendulous ; flowers greenish ; petals very lax, flaccid, 

 soon pendulous or turned in ; ripe fruit not seen. Sporadic, by the 

 denser thickets between Chixe and Calumguembo ; fl. and young fr. 

 5 Sept. 1857. No. 988. 



The following plant is doubtfully placed in Capparideae ; it may 

 perhaps belong to the genus Boscia : — 



Mossamedes. — A little tree, 8 to 15 ft. high, with a slender stem ; 

 trunk 1J to 3 in. in diameter, straight, at the apex lax and with a 

 spare crown ; branchlets terete, covered as well as the leaves with a 

 short soft scurvy tomentum ; leaves glaucous, very thickly coriaceous, 

 very rigid, alternate, linear-lanceolate, very obtuse, emarginate, rounded 

 at the base, ranging up to 5 in. long by nearly 1 in. broad ; petiole to 

 § in. ; midrib strongly marked beneath, less so and in relief above ; 

 lateral veins numerous, not conspicuous ; stipules 0. In rocky 

 mountainous places between Maiombo and Oazimba, by side of the 

 Huilla road, without flowers, Oct. 1859. No. 978. 



X. MORINGACEiE. 



1. MORINGA Burm. ; Benth. & Hook. f. Gen. PI. i. p. 430. 



1. M. aptera Gaertn. Fruet. ii. p. 315 (1791); Oliv. Fl. Trop. 

 Afr. i. p. 101.- 



Sierra Leone. — The specimens gathered were lost by decay during 

 the voyage between Sierra Leone and Prince's Island in Sept. 1853. 



Welwitsch suggested that this Natural Order might possibly be 

 placed with Bignoniacese, a suggestion which has also been made 

 by Dalzell. 



XI. VIOLACE^. 



The Violaceas of Angola increase continually in number of 

 species and of individuals as the country rises towards the east — 

 that is, towards the interior of the continent — so that the greatest 

 number of species are found in the district of Pungo Andongo ; 

 and they become rarer towards the 14th or 15th degree of south 

 latitude, and then cease altogether ; at least, none were met with 

 in the highlands of Benguella, neither in the primitive forests of 

 Bumbo nor on the plateau of Huilla, where Welwitsch collected 

 a large number of species. Gaheolwria (Ionidium) was met with 

 only in the littoral regions. 



The species of Rinorea (Alsodeia) are either shrubs or small 

 trees and mostly bear evergreen leaves ; they constitute, in com- 



3 



