[From Calabar, on the Gulf of Guinea, in Africa.] The seed of Physostigma venenosum, a climbing leguminous plant, called also the Ordeal-bean, administered by the natives to persons suspected of witchcraft.

1

1876.  Harley, Mat. Med., 654.

2

  Hence Calabarine, ‘an alkaloid found in the Calabar bean’ (Syd. Soc. Lex.).

3

1875.  H. C. Wood, Therap. (1879), 310.

4