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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 8, No. 5 



I much suspect that P. zombensis S. Moore, Jour. Linn. Soc. Dot. 37: 306. pi. 

 13. (1906) is synonymous with P. lanceolata var. pedata, but the leaves are 

 rounded-based in P. zombensis, and I would like to see more material from Nyasa- 

 land before sinking it. 



Swynnerton 74 was cited, together with 2269, in Jour. Linn. Soc. Bot. 40: 37 

 (1911) under P. pedunculata K. Schum. I have examined the type-specimens of 

 the latter, and they clearly differ from P. lanceolata var. pedata in having a much 

 larger calyx, irregularly cleft after anthesis. 



Polysphaeria cf. dischistocalyx Brenan, Kew Bull. 1949: 8L 1949. 



Kota-kota District: Chia area, occasional on banks of streams in woodlands 

 of lake plain, shrub 3-4 m. high, fruits red when ripe, 480 m., Sept. 3, 1946, 

 17511. 



The determination is uncertain without good calyces. P. dischistocalyx is 

 confined to Tanganyika Territory and Nyasaland. 



Heinsenia diervilleoides K. Schum. Bot. Jahrb. 23: 454. 1897. 

 Heinsenia sylvestris S. Moore, Jour. Linn. Soc. Bot. 40: 8 5. 1911. 



Cholo District: Cholo Mountain, frequent in rain-forest, tree up to 15 m. high 

 and to 20 cm. in diameter at breast-height, young leaves red, leaf-nerves whitish 

 above and beneath, flowers white, 1300 m., Sept. 20, 1046, 17680. Uganda and 

 Kenya to S. Rhodesia; new to Nyasaland. 



The alleged differences between H. sylvestris and H. diervilleoides given by 

 So Moore seem to me neither constant nor of specific value. In his key to the 

 species S. Moore (op. cit. y 87) contrasts the breadth of the narrow basal part of 

 the corolla-tube in these two species — 5 mm. in H. diervilleoides, 1.2 mm. in rV. 

 sylvestris. An excellent isotype specimen of H. diervilleoides at Kew shows the 

 basal part of the tube (in the dried state) about 0.75 mm. in diameter, and S. 

 Moore certainly made some mistake over his measurement. 



Rytigynia sp. 



Kota-kota District: Nchisi Mountain, among rocks in Brachystegia woodland, 

 tree 3-6 m. high, fruits more or less fleshy, black when ripe, 1400 m., July 26, 

 1946, 16952. 



This plant has not been exactly matched; the material is insufficient. In 

 facies it somewhat resembles R. dasyothamnus (K. Schum.) Robyns from the Cam- 

 eroons, but that species has long appendages to the corolla-lobes, while Mr. 

 Brass* plant, as far as can be judged from immature buds, lacks them. 



Canthium gueinzii Sond. Linnaea 23: 54. 1850; Bullock, Hook. Ic. PI. pi. 3170. 

 ^1932; Kew Bull. 1932: 3<$8. 1932. 

 Mlanje District: Mlanje Mountain; Luchenya Plateau, one example in forest 

 edge, shrub 3 m. high, subscandent, fruits unripe, 1890 m., July 14, 1946, 16833. 

 Uganda to South Africa. 



Canthium zanzibaricum Klotzsch in Peters, Reise Mossamb. Bot. 2: 291. 1861; 

 Bullock, Kew Bull. 1932: 373. 1932. 

 Kasungu District: Kasungu, frequent in bushy banks of streams in Brachy- 

 stegia woodlands, subscandent shrub up to 10 m. high, flowers yellow, fragrant, 

 native name (Chinyanja) kachambe, 1000 m., Aug. 24, 1946, 17412. Kota-kota 

 District: Chia area, frequent on banks of waterholes on dry lake-plain, subscan- 

 dent shrub 6-8 m. high, flowers white, native name (Chinyanja) mtutu, 480 m., 

 Sept. 5, 1946, 17540. Uganda to Nyasaland, N. Rhodesia, and Angola. 



Canthium captum Bullock, Kew Bull. 1932: 376. 1932. 



Mlanje District: Mlanje Mountain; Likubula-Tuchila Divide, in primary forest 

 undergrowth, tree 3-4 m. high, sap not milky, fruit unripe, 2100 m., July 9, 1946, 



