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FOC | Family List | FOC Vol. 24 | Taccaceae

1. Tacca J. R. Forster & G. Forster, Char. Gen. Pl. 35. 1775.
[nom. cons.]

蒟蒻薯属 ju ruo shu shu

Leontopetaloides Boehmer, nom. rej.

Rhizomes cylindric to subcylindric or tubers globose to broadly ellipsoid-globose. Leaf blade entire or pinnately or palmately lobed, base not elongate, stomatal apparatus mostly axillocytic. Inflorescences terminal; involucral bracts 2--6(--12). Perianth campanulate, 6-lobed, persistent or soon deciduous. Ovary 1-loculed or imperfectly 4-loculed; placentas 3, parietal. Fruit a berry. Seeds reniform, ovoid, or ellipsoid, striate.

About 11 species: mainly in tropical Asia and Oceania; four species (one endemic, one introduced) in China.

Used medicinally and as a source of starch.

1 Leaf blade lobed; rootstock a globose to broadly ellipsoid-globose tuber   4 Tacca leontopetaloides
+ Leaf blade entire; rootstock a cylindric or subcylindric rhizome.   (2)
2 (1) Inner 2 involucral bracts long petiolate   3 Tacca integrifolia
+ Inner 2 involucral bracts sessile.   (3)
3 (2) Inner involucral bracts broadly ovate   1 Tacca chantrieri
+ Inner involucral bracts suborbicular-fan-shaped   2 Tacca subflabellata

Lower Taxa


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