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Eucommiaceae

Eucommiaceae Engl., Syllabus (ed. 5): 139 (1907), nom. cons.
  • L.-B. ZhangEmail author
Chapter
Part of the The Families and Genera of Vascular Plants book series (FAMILIES GENERA, volume 14)

Abstract

Deciduous trees. Leaves alternate, simple, pinnately veined, serrate, petiolate, without stipules. Flowers unisexual, dioecious, borne near base of current year’s branchlets and appearing from the scale-like buds before or together with leaves, without perianth, wind-pollinated. Flowers in the axil of bracts. Male flowers fascicled, on short pedicel; stamens 5–10, linear, filaments very short, anthers tetrasporangiate and longitudinally dehiscent; female flowers solitary in lower part of branchlets, on short pedicel; ovaries unilocular, flat, stipitate, of two fused carpels, bifid at apex, 2-ovulate; ovules anatropous, pendulous from the top of the ovary. By abortion of one ovule the ovary develops into one-seeded samara; samara oblong-elliptic, non-dehiscent, flat, bifid at apex, pericarp thinly coriaceous. Seeds compressed-oblong, pendulous, seed coat membranous; endosperm copious; embryo erect, of same length as endosperm; cotyledons fleshy, flat.

Keywords

Ellagic Acid Female Flower Calcium Oxalate Male Flower Middle Eocene 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Science & Conservation DivisionMissouri Botanical GardenSt. LouisUSA

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