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FOC | Family List | FOC Vol. 13 | Nyssaceae

1. Camptotheca Decaisne, Bull. Soc. Bot. France. 20: 157. 1873.

喜树属 xi shu shu

Trees deciduous, polygamo-monoecious. Young branchlets puberulous. Leaves petiolate; leaf blade oblong-ovate to oblong-elliptic, papery, slightly puberulous. Heads terminal or axillary. Bracts 3, triangular-ovate, both surfaces puberulous. Calyx cyathiform, 5-lobed; lobes tooth-shaped, margin ciliate. Petals 5, caducous, imbricate, pale green, oblong to oblong-ovate, outside densely puberulous. Stamens 10, unequal in length, inserted on disk, in 2 whorls; filaments slender, glabrous; anthers 4-celled. Ovary inferior, 1-loculed; ovules 1 per locule; style glabrous, 2-lobed. Fruit samaralike, clustered in globose heads, oblong, sessile, disk persistent. Seed 1; radicle terete, cotyledons thin.

● Two species: China.

Camptotheca is a primary source of anticancer camptothecin (Li et al., Pl. Med. (Stuttgart) 68: 1010-1016. 2002).

1 Leaf blade oblong-ovate or oblong-elliptic, with 11-15 pairs of lateral veins.   1 C. acuminata
+ Leaf blade cordate or ovate, with 6-8 pairs of lateral veins.   2 C. lowreyana

Lower Taxa


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