Family Ixonanthaceae Exell Mendoca 1951 nom conserv the Ixonanthes Family

Physical description: The family Ixonanthaceae consists of 5 genera and about 30 species of tropical trees or shrub known to produce saponins. The leaves are alternate, spiral, simple, entire or merely lobed, and the stipules small or wanting. The flowers are perfect, hypogynous, regular and 5-merous. The sepals are imbricate, and the petals, imbricate or convolute. The andrecium comprises of 5-20 stamens inserted around a well-developed nectary disc. The anthers are tetrasporangiate, dithecal and open by longitudinal slits. The

Uses: In Laos, Cambodia and Vietnam, the roots of Sauropus androgynus (L.) Merr. are used to combat fever. In Malaysia, Sauropus androgynus (L.) Merr. is used to promote urination, heal ulcerated nose, treat yaws and resolve sore eyes. The leaves are eaten throughout the Asia-Pacific as a vegetable.

gynecium consists of 2-5 carpels forming a compound and plurilocular ovary, containing several ovules attached to an axile-apical placenta. The style develops a capitate stigma. The fruits are scepticidal capsules containing several arillate or winged seeds.

Pharmaceutical potential: It will be interesting to learn whether a more intensive study of this family will reveal any alkaloids of therapeutic interest. Ixonan-thes icosandra Jack is of medicinal value in the Asia-Pacific.

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