1954] 



PLANTS COLLECTED IN NYASALAND 



39 



paler purple, 1500 m., June 7, 1946, 16317. Sierra Leone, Ivory Coast, Nigeria, 

 British Cameroons, Belgian Congo, Uganda, Tanganyika Territory, Nyasaland, 

 N. Rhodesia, Portuguese East Africa, and Angola. 



G. paludosum is, I suspect, only a strongly pubescent variant of G. angolense. 



Acrocephalus callianthus Briq. Bot. Jahrb. 19: 169. 1894; Bak. in Thiselton-Dyer, 

 Fl. Trop. Afr. 5: 360. 1900; Verdoorn, Fl. PI. S. Afr. 22: pi. 847. 1942. 

 Zomba District: Zomba Plateau, common in Brachystegia woodlands and rain- 

 forest regrowths, very showy herb up to 1.5 m. high, corolla pale violet, upper 

 bracts purple, large lower bracts white to lavender at base, 1450 m., June 3, 

 1946, 16188. Kota-kota District: Nchisi Mountain, plentiful on edges of forested 

 gullies, herb about 1 m. high, flowers dark, bracts paler purple, 1400 m., July 24, 

 1946, 16910; ibid., plentiful in moist gullies in Brachystegia woodland, herb 80- 

 100 cm. high, stems simple, erect, flowers purple, 1400 m., Aug. 2, 1946, 17106. 

 Portuguese East Africa, Nyasaland, N. Rhodesia. 



Iboza riparia (Hochst.) N. E. Br. in Thiselton-Dyer, Fl. Cap. 5 1 : 300. 1910. 

 Moschosma riparium Hochst. Flora 28: 67. 1845. 



Mlanje District: Mlanje Mountain; Chambe Plateau, in rocky situations in 

 grasslands, shrub 1.5-2 m. high, flowers white, honey-scented, 1900 m., July 9, 

 1946, 16766. Kota-kota District: Nchisi Mountain, plentiful in rocky gullies in 

 Brachystegia woodland, shrub 1.5-2 m. high, leaves citronella-scented, flowers 

 white, 1400 m., July 24, 1946, 16909; ibid., in shrubberies bordering rain-forest, 

 shrub 2-3 m. high, flowers lavender, 1500 m., July 29> 1946, 17018. Tanganyika 

 Territory, southwards to Natal and the Transvaal. 



There is a dried specimen in Herb. Kew. from a plant of this species culti- 

 vated at the New York Botanical Garden in 1949 from seeds collected by the 

 Vernay Nyasaland Expedition. 



Becium obovatum (E. Mey. ex Benth.) N. E. Br. in Thiselton-Dyer, Fl. Cap. 5 1 : 

 230. 1910. 



Ocimum obovatum E. Mey. ex Benth. in E. Mey. Comm. PI. Afr. Austr. 226. 1837; 



Benth. in DC Prodr. 12: 35. 1848. 

 Ocimum odontopetalum C. H. Wright, Kew Bull. 1907: 54. 1907. 



Zomba District: Zomba Plateau, one example in Brachystegia woodland, per- 

 ennial herb 40 cm. high, several stems erect from a very thick woody stock, flow- 

 ers purple-pink, 1500 m., June 6, 1946, 16283*. Kota-kota District: Nchisi Moun- 

 tain, occasional on paths in Brachystegia woodland, perennial herb 20-35 cm. 

 high, aromatic, shoots erect from a very thick woody stock, flowers pale purple, 

 1400 m., Aug. 5, 1946, 17136. Uganda to South Africa, and perhaps even more 

 widely spread. 



I feel that other species besides 0. odontopetalum must be sunk under B. 

 obovatum; until this has been done the exact range of this very variable species 

 must remain doubtful. 



Hoslundia opposita Vahl, Enum. 1: 212 (1805) var. decumbens (Benth.) Bak. in 

 Thiselton-Dyer, Fl. Trop. Afr. 5: 377. 1900. 

 Hoslundia decumbens Benth. in DC. Prodr. 12: 54. 1848. 



Kota-kota District: Chia area, in old garden land, shrub 1 m. high, aromatic, 

 flowers white, fruit-calyx inflated, yellow, 480 m., Sept. 4, 1946, 17526.* Chik- 

 wawa District: Lower Mwanza River, in open forest of river-plain, shrub 3 m. 

 high, flowers greenish- white, fruit inflated, orange, 180 m., Oct. 4, 1946, 17952. 

 The variety from Eritrea and the Anglo-Egyptian Sudan to the Transvaal, the spe- 

 cies also occurring in W. Africa. 



