Flora of China
  FOC Vol.11 (2008)              | Family List  Simaroubaceae  PDF     | Link Font:+ Big | - Small
   12. Simaroubaceae  Candolle
苦木科   ku mu ke
Authors:Peng Hua (彭华); Wm. Wayt Thomas


Trees or shrubs usually with bitter bark. Leaves alternate, sometimes opposite, pinnate to unifoliolate or rarely simple; stipules present or absent. Inflorescences axillary, racemose, paniculate, cymose, rarely spicate. Flowers generally small, bisexual or unisexual (andromonoecious, functionally dioecious, or distinctly dioecious), often with rudiments of opposite sex, actinomorphic. Calyx of 4 or 5(-8) sepals, imbricate or valvate. Petals usually 4 or 5(-8), free, imbricate or valvate. Stamens same number as petals and alternate with them, or 2 × as many as petals (or more); filaments free, base often with an appendage; anthers oblong, versatile, bicelled, with a longitudinal slit. Disk usually present, sometimes a gynophore or androgynophore. Gynoecium weakly united at base, or virtually free, usually 2-5-carpellate; ovary superior, with axile placentation; ovules 1 or 2 per locule, apical or basal; style connate or free; stigmas 2-5. Fruit a "drupe" or "samara," actually 1-5 fruitlike monocarps produced per flower, each a druparium or a samarium; endosperm present or absent; embryo straight or curved, with thick cotyledons.

Twenty genera and ca. 95 species: mainly in tropical and subtropical regions, some species in temperate regions; three genera and ten species (six endemic) in China.

Harrisonia R. Brown ex A. Jussieu and Suriana Linnaeus, treated in the Simaroubaceae in FRPS (43(3): 13-15. 1997), are treated in the Cneoraceae and the Surianaceae, respectively, in this volume.

Chen Pangyu. 1997. Simaroubaceae (excluding Harrisonia and Suriana). In: Chen Shukun, ed., Fl. Reipubl. Popularis Sin. 43(3): 1-16.

1Fruit a samarium, flat, oblong-elliptic.1  Ailanthus    臭椿属
+Fruit a druparium, ovate or oblong-ovate(2)
2(1)Druparium with persistent calyx; leaflets glabrous on both surfaces or pubescent on midvein or lateral veins when young.2  Picrasma    苦木属
+Druparium without persistent calyx; leaflets pubescent abaxially or on both surfaces.3  Brucea    鸦胆子属
   Lower Taxon
  • Ailanthus  Desfontaines  臭椿属
  • Brucea  J. F. Miller  鸦胆子属
  • Picrasma  Blume  苦木属