tetramerous


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tetramerous

[te′tram·ə·rəs]
(biology)
Characterized by or having four parts.
References in periodicals archive ?
Halenia (Gentianaceae) is a herbaceous genus with tetramerous, mostly spurred flowers distributed in high-altitude areas of Asia and the Americas.
In this species, the flowers are tetramerous. An annular ovary primordium is formed, surrounding a central ovule primordium.
In contrast, the Antillean Cinnamodendron species have tetramerous flowers (8 petals, 8 stamens, 4 carpels, and 4 placentae).
The tetramerous, apetalous flowers of Chrysosplenium are
Dialypetalanthus has a tetramerous perianth but 16-25 stamens; it is also unusual in that it has free petals (Piesschaert et al., 1997).