This section is from the book "Handbook Of Hardy Trees, Shrubs, And Herbaceous Plants", by W. Botting Hemsley. Also available from Amazon: Handbook of hardy trees, shrubs, and herbaceous plants.
The plants of this family are mostly of climbing habit, with alternate lobed leaves and lateral tendrils. In structure they are remarkable in having a single double or triple corona, as the organs are collectively termed which intervene between the petals and stamens. The fruit is superior, often fleshy, ediblo and indehiscent, and usually stipitate. About 250 species and 20 genera are comprised in this order. They are usually very showy, but unfortunately nearly all are natives of the tropics.