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FOC | Family List | FOC Vol. 11 | Euphorbiaceae

18. Putranjiva Wallich, Tent. Fl. Napal. 61. 1826.

假黄杨属 jia huang yang shu

Authors: Bingtao Li & Michael G. Gilbert

Liodendron H. Keng.

Trees or shrubs. Leaves simple, alternate, margin entire or crenulate-serrulate, petiolate, penninerved. Flowers dioecious, apetalous; disk absent. Male flowers in axillary racemes or spikes; calyx 4-6-parted; sepals imbricate; stamens 2-4; pistillodes absent. Female flowers solitary, axillary; calyx 5-parted; sepals narrow, imbricate; ovary ovoid or oblong-ovoid, 2-celled; ovules 2 per cell; styles petaloid-dilated, 2- or 3-branched at upper portion, papillose. Drupes indehiscent, long pedicellate, 1-locular, 1-seeded; mesocarp fleshy; pyrene stone-hard. Seed testa membranous or crustaceous; endosperm fleshy.

About four species: China, India, Japan (Ryukyu Islands), Sri Lanka; one species (endemic) in China.

Putranjiva is included within Drypetes by some authors. The record in FRPS of the Japanese species P. matsumurae Koidzumi (D. matsumurae (Koidzumi) Kanehira) from Taiwan is not accepted in either Fl. Taiwan or Fl. Japan.

Putranjiva roxburghii Wallich (Drypetes roxburghii (Wallich) Hurusawa) is cultivated in Hong Kong. The leaves and fruits are used medicinally for the treatment of rheumatism.

1 Leaves glabrous; inflorescences racemose, 6-8 mm, velutinous.   1 P. formosana
+ Leaves glabrescent; inflorescences densely glomerulose, glabrous. ..... P. roxburghii (see note above)    

Lower Taxon


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