Physostigma

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Physostigma

 

a genus of herbaceous plants of the family Leguminosae. The plants are herbs that lignify at the base, or lianas. There are two to four species, distributed in tropical Africa and on Madagascar. The woody liana P. venenosum, which is native to tropical Africa, is cultivated in India, Brazil, and—to a lesser extent—other tropical countries. Its seeds, known as Calabar beans, contain several alkaloids, including physostigmine.

REFERENCE

Atlas lekarstvennykh rastenii SSSR. Moscow, 1962.
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A BOY whose torso was found in the River Thames had been poisoned by a toxic calabar bean used in West African witchcraft rituals, police said yesterday.
Botanists at Kew Gardens in South West London identified the calabar bean which was found in Adam's intestine.
On the cusp of containerisation, he supervised cargoes, including palm kernels, cocoa and groundnut products, as well as more exotic freight ranging from calabar beans, cottonseed and pigs' snouts to Land Rovers, Crocodile Brand machetes, Aunt Jemima's Cabin Bread and missionaries' generators.