Libertia flaccidifolia (lridaceae), a new species from Mt Tamahunga

Abstract

A new species of Libertia, L. flaccidifolia, is described from Mt Tamahunga, Northland, New Zealand. Libertia flaccidifolia is similar to L. grandiflora but differs from that species in that it possesses broad, flaccid leaves, with strongly scabrid margins, fully dehiscing capsules, yellow-orange seeds, and a dodecaploid chromosome number. Libertia flaccidifolia is an extremely uncommon species that has declined in abundance following human-induced disturbance. Using the New Zealand Threat Classification System, we recommend a conservation status of Threatened/Nationally Critical qualified OL (One Location), RR (Range Restricted), RF (Recruitment Failure). A revised key to species found in New Zealand is included.