66 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 9, No. 1 



I am unable to confirm the differences in relative length of perianth-tube and 

 perianth-lobes alleged to separate 0. kirkii from 0. s chimp erianus. 



Osyris corapressa (Berg.) A. DC. in DC. Prodr. 14: 634. 1857. 

 Colpoon compression Berg. PI. Cap. 38. pi. 1, f. 1. 1767. 



Osyris abyssinica Hochst. ex A. Rich. Tent. Fl. Abyss. 2: 236. 1851; Bak. & Hill in 



Thiselton-Dyer, Fl. Trop. Afr. &: 433. 1911. 

 Osyris arborea Wall, ex A. DC. in DC. Prodr. 14: 633. 1857. 

 Osyris wightiana Wall, ex A. DC. in DC. Prodr. 14: 633. 1857. 



Mlanje District: Mlanje Mountain; west slopes, one example on grassy bank 

 of a stream, tree or shrub 4 m. high, slender, erect, few-branched, leaves glau- 

 cous, flowers yellowish, fruits glaucous-green, 1530 m., July 18, 1946, 16878. 

 Kota-kota District: Nchisi Mountain, common in rocky situations in Brachystegia 

 woodland, tree or shrub 2-4 m. high, leaves glaucous, flowers yellow, 1400 m., 

 July 24, 1946, 16887. Somaliland to South Africa; also in tropical Asia. 



EUPHORBIACEAE 



Euphorbia zambesiana Benth. Hook. Ic. PI. pi. 1305. 1880. N.E.Br, in Thiselton- 

 Dyer, Fl. Trop. Afr. 6 1 : 500. 1911. 

 Kota-kota District: Nchisi Mountain, on pathway in Brachystegia woodland, 

 perennial herb 5 cm. high, numerous shoots crowded at the apex of a thick root- 

 stock, sap milky, leaves reddish, inflorescence red, glands black, bracts white, 

 1400 m., July 25, 1946, 16932. Uganda, southwards to Angola. 



Euphorbia schimperiana Scheele, Linnaea 17: 344. 1843. N.E.Br, in Thiselton- 

 Dyer, Fl. Trop. Afr. 6 1 : 533. 1911. 

 Euphorbia ampla Hook. f. Jour. Linn. Soc. Bot. 6: 20. 1862; N.E.Br, in Thiselton-Dyer, 

 Fl. Trop. Afr. 6 1 : 532. 1911. 



North Nyasa District: Nyika Plateau, shrubby edge of montane forest, herb 

 80 cm. high, sap milky, flowers green, 2300 m., Aug. 13, 1946, 17207*; ibid., oc- 

 casional on shrubby edges of montane forest, herb, flowers and bracts green, 

 2250 m., Aug. 16, 1946, 17258. Arabia, Aden, Anglo-Egyptian Sudan, Abyssinia, 

 Uganda, Kenya, and Tanganyika Territory, Nyasaland, S. Rhodesia; also in the 

 British Cameroons (Cameroon Mountain and Bamenda). 



I do not consider E. ampla distinct from E. schimperiana. The resulting geo- 

 graphic range, although on the face of it an odd one, is paralleled by a signifi- 

 cantly" large number of other species. For further synonymy see N. E. Brown 

 (11. c) 



Euphorbia depauperata Hochst. ex A. Rich. Tent. Fl. Abyss. 2: 241. 1851; N.E.Br, 

 in Thiselton-Dyer, Fl. Trop. Afr. 6 1 : 537. 1911. 

 Zomba District: Zomba Plateau, in open grasslands, herb 15 cm. high, fleshy, 

 flowers green, 1500 m., June 4, 1946, Anthony 16222*. Kota-kota District: Nchisi 

 Mountain, sporadic in Brachystegia woodland, herb 40-50 cm., stem and leaves 

 red, flowers greenish, 1450 m., July 30, 1946, 17031*. North Nyasa District: 

 Nyika Plateau, sporadic in open grassland, perennial herb, young flowering 

 shoots now appearing after burning of the grass, flowers green, 2400 m., Aug. 11, 

 1946, 17164; ibid., common in open grasslands, perennial herb 30-60 cm. high, 

 leaves reddish, flowers yellowish, seldom fertile, 2300 m., Aug. 16, 1946, 17244; 

 ibid., plentiful in rocky shrubberies on grasslands, shrub about 1 m. high, sparsely 

 branched, sap milky, stems and leaves reddish, flowers and bracts reddish, glands 

 green, 2500 m., Aug. 18, 1946, 17321. From the Anglo-Egyptian Sudan southwards 

 to Nyasaland and N. and S. Rhodesia; also in the Cameroons. 



