1954] 



PLANTS COLLECTED IN NYASALAND 



429 



below, [in fruit,] 480 m., Sept. 3, 1946, 17506. Tanganyika, Belgian Congo, N. 

 and S. Rhodesia, Nyasaland, and Portuguese East Africa. 



Normally a species of hills and upper parts of the plateaux. The specimen 

 collected by Mr. Brass is from an unusually low altitude, and this may account 

 for its being very depauperate in appearance even for Nyasaland, especially in 

 the pods, which usually have three or more seeds. 



Dichrostachys glomerata (Forsk.) Chiov. Ann. Bot. Roma 13: 409. 1915; Hutch. 

 & Dalz. ex Greenway, Kew Bull. 1928: 204, 401. 1928; Bak. f. Leg. Trop. 

 Afr. 807. 1930; Gilbert & Boutique, Fl. Congo Beige 3: 202. 1952. 

 Mimosa glomerata Forsk. Fl. Aegypt.-Arab. 177. 1775. 



Chikwawa District: Chikwawa, in dry bushy forest of river-plain, shrub 4 m. 

 high, native name (Chinyanja) chipungala, 200 m., Oct. 2, 1946, 17902; ibid., 

 scattered in Acacia albida woodland, tree or shrub 5 m. high, basal flowers of 

 spike pink, others yellow, native name (Chinyanja) chisio, 200 m., Oct. 3, 1946, 

 17913. Native of tropical Africa and Asia, also introduced into Florida and Cuba. 



Mimosa pigra L. Cent. Plant. 1: 13. 1755; Gilbert & Boutique, Fl. Congo Beige 

 3: 230. 1952. 



Mimosa asperata L. Syst. Nat. ed. 10. 1312. 1759; Bak. f. Leg. Trop. Afr. 812. 1930. 



Kota-kota District: Benga, west shore of Lake Nyasa, frequent on sandy lake- 

 shores, shrub 2 m. high, somewhat scrambling, flowers palest pink, 470 m., Sept. 

 2, 1946, 17481. Tropics of Old and New Worlds. 



Acacia nigrescens Oliv. FL Trop. Afr. 2: 340. 1871; Bak. f. Leg. Trop. Afr. 829. 

 1930. 



Chikwawa District: Lower Mwanza River, frequent in open forest of river-plain, 

 tree to 25 m. high and to 60 cm. in diameter, deciduous, now in young leaf, flow- 

 ers cream-coloured, 180 m., Oct. 4, 1946, 17951. Tanganyika Territory to Natal 

 and the Transvaal. 



Acacia campylacantha Hochst. ex A. Rich. Tent. Fl. Abyss. 1: 242= 1847; Bak. 

 f. Leg. Trop. Afr. 831. 1930. 

 Kota-kota District: Nchisi, common in old second-growth forest, tree to 25 m. 

 tall and 80 cm. in diameter, fruit immature, native names (Chinyanja) minga, (Chi- 

 chewa) miwa, 1000 m., Aug. 1946, 17116. Widespread in tropical Africa, extend- 

 ing southwards to the Transvaal. 



Acacia ? xiphocarpa Hochst. ex Benth. Lond. Jour. Bot. 5: 96. 1846; Pichi- 

 Sermolli, Miss. Stud. Lago Tana 1: 52. 1951. 



ZomLa District: Zomba Plateau, occasional in Brachystegia woodlands and 

 common in second-growth rain-forest in gullies on slopes of mountains, tree up 

 to about 12 m. high, very strikingly flat-topped, flowers not seen, fruit immature 

 (reddish with green margins), 1400-1500 m., June 5, 1946, 16234. Anglo-Egyptian 

 Sudan to S. Rhodesia. 



I do not at present feel certain that the East African material named A. xipho- 

 carpa is identical with the Abyssinian type. 



Acacia seyal Del. Fl. Aegypt. 286. pi. 52, f. 2. (1812) var. multijuga Schweinf. 

 ex. Bak. f. Leg. Trop. Afr. 844. 1930. 



Acacia stenocarpa sensu Bak. f. Leg. Trop. Afr. 845. 1930; non Hochst. ex A. Rich. 



Kasungu District: Kasungu, a common shrub in cut-over Brachystegia wood- 

 land, shrub 1-1.5 m. high, flowers yellow, seeds green when ripe, 1000 m, , Aug. 

 24, 1946, 17405. 



This is probably a distinct species from A. seyal, and widespread in tropical 

 Africa. I have used the varietal name, as it is the only certain available one for 



