Logania was named after James Logan (1674-1751), an Irish botanist and writer who went to the US as William Penn’s agent and became Governor of Pennsylvania. Trees, shrubs and herbs or even some are climbers; leaves simple, opposite, often jointed by interpetiolar stipules which often form a sheath, or be much reduced so only a rim remains. Flowers 4-5-merous, petals fused, stamens epipetalous. Ovary with 2 locules, fruit usually a capsule, or if fleshy a berry or drupe.