Four new Cryptocoryne (Araceae) from Sumatera, Indonesia: a new variety and three interspecific natural hybrids
A new diploid variety, Cryptocoryne cordata
var. wellyi from the Riau Province in Sumatera is described. Three interspecific natural hybrids are also described: the diploid C. ×ardyi
, the triploid C. ×jambiensis
and the tetraploid C. ×zukalii
, of which the tetraploid hybrid involves C. cordata
as one parent. The hybrids are sterile but propagate vegetatively, forming large stands. A key to the Cryptocoryne
taxa of Sumatera is provided.