Hebe arganthera (Scrophulariaceae), a new species from calcareous outcropsin Fiordland, New Zealand

Hebe arganthera is described and illustrated. The new species is a shrub wi th dull green leaves, prominent leaf-base scars, a narrow sinus in the leaf bud, opposite flowers at least basally, white anthers, and small seeds. It is confined to well-lit sites on limestone and marble outcrops in Fiordlan d, southern New Zealand. We compare it with H. cockayneana, H. rupicola, an d H. subalpina. It is known from three sites only and is considered to be v ulnerable. We provide a key to all the species of Hebe known from Fiordland National Park.