Bot. [mod.L. (Jussieu, 1789), f. Peruvian name tacso.) A genus of West Indian and Central American shrubs, N.O. Passifloraceæ, closely allied to the Passion-flowers.

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1869.  Darwin, Life & Lett., III. 279. The long pendent tube and valve-like corona which retains the nectar of Tacsonia.

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