27. Vitaceae - Grape, Virginia creeper; usually lianas with alternate leaves, often palmately lobed or compound, sometimes pinnate; leaf opposed by a tendril (modified inflorescence developing from displaced bud) that attaches to support by twining or by forming adhesive discs; nodes usually swollen; flowers 4- or 5-merous, petals forming a cap that falls off when the flower opens; fruit a berry; seeds 4, with prominent cordlike raphe extending to a chalazal knot..