Notes on the identity, distribution and conservation status of the threatened plant species 'Utricularia singeriana' F. Muell. (Lentibulariaceae)

Collection and examination of considerable Utricularia material from the Northern Territory over the last 15 years has provided a better understanding of morphological variation and allowed further interpretation of diagnostic characters in Utricularia singeriana F. Muell., among others. It is here regarded as a Northern Territory endemic species restricted to the Darwin-Katherine area while the specimens from Western Australia (WA) formerly attributed to U singeriana are considered to be a distinct, probably undescribed, taxon requiring further collecting and research.