Dipterocarpaceae

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Dipterocarpaceae

[¦dip·tə·rō‚kär′pās·ē‚ē]
(botany)
A family of dicotyledonous plants in the order Theales having mostly stipulate, alternate leaves, a prominently exserted connective, and a calyx that is mostly winged in fruit.

Dipterocarpaceae

 

a family of dicotyledonous choripetalous plants. There are about 330 species making up 17 genera (16 in tropical Asia and one in tropical Africa). Almost all the representatives of this family are evergreen trees attaining a height of 60-70 m. The leaves are alternate and with stipules; the flowers are regular, bisexual, and gathered into spikes, racemes, or panicles. There are five sepals and five petals, from five to 15 or more stamens, and one pistil with a three-celled ovary. The fruit is a monospermous nut surrounded by a calyx whose sepals become enlarged and help spread the fruit. Economically important are species of the genera Shorea, Dipterocarpus and Drioblanops, which yield valuable timber, dammar, balsam, camphor, and refractory fats.