MR. BENTHAM'S NOTE ON HOMALIUM. 



In drawing up my synopsis of the genus Homalium (p. 38), I had unfor- 

 tunately overlooked M. L. B. Tulasne's " Florae Madagascariensis Frag- 

 mentum Alterum," in the 'Annales des Sciences Naturelles/ s^r. 4, 

 Botanique, vol. viii. p. 58, where five new species of Blackwellia, all from 

 Madagascar, are described. I have not seen any specimens, so as to com- 

 pare them with my own species ; 1 can, therefore, now merely give here 

 the list, with the affinities suggested by the perusal of the descriptions. 



B. brachystylis (Tul. in Ann. Sc. Nat., ser. 4, vol. viii. p. 59), evidently 

 closely allied to B. axillaris, Lam., or my Homalium axillare. 



B. Thuarsiana (Tul. I.e. p. 60), evidently very near to B. paniculata, 

 Lam ., or H. paniculatum, Benth, 



B. eriantha (Tul. I.e. p. 62) must also be closely allied to the same 

 species. 



jB. micrantha, Bois. (Tul. I.e. p. 63), seems to differ in its slender 

 racemes and smaller flowers with broader sepals and petals. 



B. planijlora, Bois. (Tul. I.e. p. 64), probably differs still more in having 

 the petals broader, longer, and more obtuse than the sepals. 



G. B. 



