611 



ix. 1911, pp. 17-35. "Castor Seed," I.e. xi. 1913, pp. 57-58, 



from Anglo -Egyptian Sudan. " The Cultivation of Castor Oil 



Beans," Mundy, in Rhodesian Agric. Journ. xi. 1914, pp. 529-533. 



" Castor Seed," Col. Rep. Alisc. No. 88, 1914, pp. 504-509, 



from Uganda, Sudan, East Africa, Rhodesia, Mozambique, 

 Mauritius, Ceylon, and Fiii, with analyses and deserintions — 



ic 



ec 



Castor Seed/' Bull. Imp. Inst. xv. 1917, pp. 407-413. 



Castor Bean Meal Feed for Pigs/' Journ. Bd. Agric. xxiv. 



March 1918, dp. 1444-144G. 



Plukenetia, Linn. 



% 



Plukenetia conophora, Miill Ar^. ; Fl. Trop. Afr. VI. Sect. 1, 



p. 949. 



///.— Tropenpflanz. 1909, p. 282 (nuts). 



Vernac. names, — Ngart (Cameroons, Krause dh DiesseJhorst) ; 

 Awusa, or Owusia, Musyabassa (Sierra Leone, Scott Elliot).' 



Modakeke (Foster, Ko. 205, Herb. Kew), Oban " (Talbot) 

 Akwa (Thomas) in Southern Provinces, Nigeria, and occurring 

 in Upper Guinea from Sierra Leone to Fernando Po and the 

 Cameroons, also in the Gaboon, Belgian Congo, &c. 



with 



,No. 3, 1893, pp. 42, 43). 

 The kernels yield a: 



Misc 



rams 



p. 265; Bull. Imp 



53-8 per cent, of a drying oil, resembling linseed oil in its 

 physical and chemical properties (Tropenpfl. 1909, p. 282, 1912, 



Inst. 1912, p. 494, 1913, p. 158; Inter. Inst, 



Agric. Rome, Bull. Bur. ' Agric. Intell. Feb. 1918 — Ngart 



{Plukenetia conophora), p. 151; Agric. News, Barbados, seq.). 



A climbing plant 15-20 ft, high Cameroons (Mann, Herb. 



Kew). 



Ref,—" Untersuchung des 01.cs von Plulenetia conophora,'' 

 Krausse & Diesselhorst, in Der Tropenpflanzer, xiii. 1909, 

 p. 282. — 01 von Plukenetia conophora,'' I.e. xvi. 1912, p. 265. 



Source of a L^seful Oil," Agric. News, Barbados, xi. 1912, 

 p. 201. 



Pycxocoma, Benth. 



Pyenocoma macrophylla, Benth. \ Fl. Trop. Afr. VI. Sect. 1, 



p. 959. 



(Natal, Holmes) 



Oban (Talbot No. 699, Herb. Kew) and known from the 

 Cameroons, Belgian Congo, Natal, etc. 



Fruits used for tanning in Natal — from whence there is in 

 the Museum a specimen of leather tanned with this material; 

 but tliey do not appear to be of any importance elsewhere for 

 this purpose. 



