Pharbitis.—A genus constituted by Choisy, 1833, its species referable to Ipomoea or Convolvulus. Ipomoea hederacea (L.) Jacq. (Pharbitis Nil Choisy..—The seeds of this Japanese plant have been chemically examined by K. Hirano and also by Y. Inoko, who find that they contain a large proportion of a resinous substance, seemingly identical with convolvulin, and acting as a cathartic in doses of from seven to ten grains (0.45-0.65 Gm.). (Sei-i-kwai, 1891.)
The Dispensatory of the United States of America, 1918, was edited by Joseph P. Remington, Horatio C. Wood and others.