Eucalyptus deuaensis (Myrtaceae), a new species of Mallee Stringybark from Deua National Park, South-eastern NSW.

Abstract

A new species, Eucalyptus deuaensis Boland & Gilmour, is described. Its taxonomic position is in subgenus Monocalyptus, section Renantheria, series Capitellatae, following the informal classification of Pryor and Johnson (1971). The species is somewhat unusual in that it is a gum-barked 'Stringybark', i.e. its fruit and seedling morphology conform with those species normally having their trunks clothed with Stringybark. E. deuaensis is known only from the type locality, near Mongamulla Moun- tain, where the population extends over several hectares on steep rhyolitic cliffs. Analyses of the oil composition of the adult leaves were not definitive for the species, but suggested similarities with other stringbark species. The ecology, distribution, taxonomic affinities and conservation status are discussed.