Penthaclethra. Penthaclethra macrophylla. Owala grains.

Penthaclethra. Penthaclethra macrophylla Benth. (Fam. Leguminosae.) Owala Grains.—The seeds of this plant, which grows in the Congo States, are said to contain an alkaloid, paucine, crystallizing in yellow foliaceous crystals, melting at 126° C. (258.8° F.), insoluble in ether and chloroform, having the formula C₂₇H₃₈O₅.5. (P. J., lix.) Paucine hydrochloride, C₂₇H₃₉O₅.5 2HCl + 6H₂O, is marketed by Merck and Co., and is stated to be physiologically inactive.

The Dispensatory of the United States of America, 1918, was edited by Joseph P. Remington, Horatio C. Wood and others.