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FOC | Family List | FOC Vol. 16 | Apocynaceae

4. Bousigonia Pierre in Planchon, Prodr. Apoc. 324. 1894.

奶子藤属 nai zi teng shu

Lianas woody, latex white. Leaves opposite, veins parallel. Cymes axillary or terminal, long pedunculate. Flowers 5merous. Calyx deeply divided, with basal glands inside. Corolla salverform, tube cylindric, swollen at base, throat without corona scales; lobes overlapping to left. Stamens inserted at middle of corolla tube; filaments stout; anthers included, narrowly oblong, free from pistil head, lobes rounded at base; disc shorter than ovary, short cylindric, fleshy, thick, apex entire or emarginate. Ovary entire, 1-loculed, placentas 2; ovules 2 on each placenta. Style short; pistil head dilated, apex 2-cleft. Fruit berrylike, pulpy. Seeds 3 or 4, not comose; embryo large, radicle short.

Two species: China, Laos, Vietnam; both in China.

1 Lateral veins of leaf blade 8-12 pairs; disc puberulent   1 Bousigonia mekongensis
+ Lateral veins of leaf blade 20-25 pairs; disc glabrous   2 Bousigonia angustifolia

Lower Taxa


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