Abstract
The Australasian genus Chionochloa Zotov Is revised for New Zealand; all 22 species are endemic including the one species on the subantarctlc islands. One new species, ten new subspecies, one new variety, and one new form are described; C. pungens of Stewart I. is submerged in C. crassiuscula; C. Xelata is given the status of a hybrid. Natural hybrids are reported, and 35 interspecific combinations are described.