Redefinition of Zehneria and Four New Related Genera (Cucurbitaceae), with an Enumeration of the Australasian and Pacific Species

The genus Zehneria Endl. is split into 5 genera, of which 4 are new: Indomelothria, Neoachmandra, Scopella, and Urceodiscus.Apart from several new combinations and taxa of subspecific rank, the following species are described as new: I. chlorocarpa, N. backeri, N. lancifolia, N. macrantha,