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Sphenostemonaceae

Sphenostemonaceae P. Royen & Airy Shaw, Kew Bull. 27: 325 (1972).
Chapter
Part of the The Families and Genera of Vascular Plants book series (FAMILIES GENERA, volume 14)

Abstract

Evergreen shrubs or trees up to 25 high. Leaves alternate, opposite to subopposite, or pseudo-whorled, petiolate, exstipulate (present, minute?), simple, coriaceous, entire to glandular-dentate, penninerved. Inflorescences axillary or terminal racemes, bracteate at base, floral bracts caducous. Flowers hermaphrodite or rarely unisexual, actinomorphic; perianth composed of 4–6 distinct, imbricate, caducous sepals, and 4–6 distinct, imbricate, fleshy, caducous petals, or apetalous; stamens 4–6 or 8–13, distinct, in one whorl, antesepalous, filaments short or almost absent, anthers introrse; disk absent, ovary superior, sessile, bicarpellate, bilocular, fusiform to cylindric, style absent, stigma slightly bipartite, cup-shaped; ovules one per locule, pendant, anatropous, apotropic, unitegmic. Fruit a berry, sometimes asymmetric, crowned by the stigma. Seed 1 or 2, non-arillate; embryo surrounded by chalazal envelope with copious, ruminate endosperm.

Keywords

Evergreen Shrub Flower Hermaphrodite Floral Bract Unisexual Flower Sclerified Tissue 
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.Staatliches Museum für Naturkunde StuttgartStuttgartGermany

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