Type : "1118.
S. toxifera Schomb. MSS. - Guayana. [...] This plant has been ascertained by Mr. Schomburgk to furnish the basis of a celebrated poison, called
Wooraly,
Woorari,
Ourari, or
Urari, in Guayana. According to Dr. Hancock, the bark, applied externay, is a good remedy for foul ulcers; in his opinion it is one of the most potent sedatives in nature, and, coud it be safely managed, would no doubt become a valuabe remedial agent in the treatment of convulsive and spasmodic disorders.
Med. Gaz. xx. 281 [London Medical Gazette, 20:
281. 1837]." [protologue].
Guyana, Essequibo, Kanuku Mountains, R. Schomburgk 155 (HT: K).