The Maple Family
This family includes trees, shrubs, woody and herbaceous climbers and perennial herbs. Leaves are alternate or opposite and simple to pinnately to ternately or palmately compound. Where compound the leaves appear evenly pinnate. Leaflets have pinnate venation; the margins are entire, crenate, serrate or tothed. In simple leaves the venation may be palmate (e.g. Acer) or pinnate. Floral arrangements are axillary, terminal or cauliforous thyrsoid panicles, racemes, spikes or fascicles or even solitary. Flowers are pentameric and actinomorphic (radially symmetric) or tetramerous and zygomorphic (bilaterally symmetric); flowers unisexual or bisexual. Each flower has 4 -5 petals and sepals joined at the base. Petals colored white or yellow. There is a nectary disc surrounding the 5 -8 stamens. The ovary is superior composed of three fused carpels topped wth a terminal three part style and stigma. Fruits are septifragal or loculicidal capsules, schizocarps with winged parts, berries or drupes. Seeds often have an aril and are usually horsechestnut-like with a glossy skin and a large scar. Specimens from this family are found world-wide: temperate, tropical and even hemi-boreal. Sapindaceae contains 140 genera including: Acer, Aesculus, Koelreuteria, Litchi, and Sapindus.