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FOC | Family List | FOC Vol. 11 | Rutaceae

13. Skimmia Thunberg, Nov. Gen. Pl. 3: 57. 1783.

茵芋属 yin yu shu

Authors: Prof. Dianxiang Zhang & Thomas G. Hartley

Shrubs or trees, evergreen, usually dioecious or monoclinous, unarmed. Leaves alternate, simple. Inflorescences terminal, thyrsiform. Sepals (3 or)4 or 5(-7), distinct or basally connate. Petals (3 or)4 or 5(-7), imbricate in bud. Stamens (3 or)4 or 5(-7), distinct, rudimentary in female flowers. Disk annular or pulvinate. Gynoecium 2-5-loculed, syncarpous, rudimentary in male flowers; ovules 1(or ?2) per locule; style short or ± as long as ovary. Fruit a fleshy drupaceous berry, with 1-5 1-seeded leathery pyrenes. Seeds ovoid to ellipsoid; seed coat membranous; endosperm copious; embryo straight; cotyledons oblong to suborbicular, flattened; hypocotyl superior.

Five to six species: E, S, and SE Asia; five species (one endemic) in China.

1 Leaf blade midvein puberulent   (2)
+ Leaf blade midvein glabrous   (3)
2 (1) Fruit red.   1 S. reevesiana
+ Fruit bluish black.   2 S. melanocarpa
3 (1) Leaf blade secondary veins 12-20 on each side of midvein; rudimentary gynoecium in male flowers entire or nearly so; petals reflexed.   5 S. multinervia
+ Leaf blade secondary veins fewer than 10 on each side of midvein; rudimentary gynoecium in male flowers 3- or 4-lobed; petals erect to spreading   (4)
4 (3) Shrubs to 2 m tall; fruit red.   3 S. laureola
+ Trees to 12 m tall; fruit bluish black.   4 S. arborescens

Lower Taxa


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