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Dipterocarp family
Dipterocarpaceae Blume
フタバガキ科
A family of giant trees known as the dominant species of Southeast Asian tropical rainforests. Approximately 17 genera and 695 species are known, forming the major component of Southeast Asian rainforests. Named for the two wing-like enlarged sepals on the fruit. A major source of tropical timber (lauan/meranti, etc.).
Key Characteristics
- ●Large trees, with some species reaching 40 to 80 m in height
- ●Fruit bearing 2 to 5 wing-like sepals, gyrating as it falls
- ●Leaves simple, coriaceous, alternate
- ●Exhibits mast flowering and fruiting (mass synchronized reproduction)
Morphological Traits
A family may include species with different trait values — multiple values indicate the range within the family.
Leaf arrangement
Alternate
Leaf type
Simple
Venation
Pinnate
Leaf margin
Entire
Growth form
Tree
Evergreen/Deciduous
Evergreen
Leaf dissection
Undivided
Stipules
Present
Flower symmetry
Actinomorphic
Petal count
Many
Ovary position
Superior / Half-inferior
Stamen count
5
Plant sex
Hermaphrodite
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Malvales > Dipterocarpaceae
Divergence Era
Late Cretaceous (ca. 80 million years ago)
Representative Genera
Related Evolution Events
- ・Evolution of gyrating dispersal via wing-like sepals
- ・Predator satiation strategy through mast flowering and fruiting
- ・Specialization and dominance in Southeast Asian tropical rainforests
Plants in Dipterocarp family on this site
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