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Notoleptopus is a monotypic genus of flowering plants in the family Phyllanthaceae. It is one of eight genera in the tribe Poranthereae. The sole species is Notoleptopus decaisnei. It is a monoecious shrub, native to Australia, New Guinea, and Indonesia.

Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Malpighiales
Family: Phyllanthaceae
Tribe: Poranthereae
Genus: Notoleptopus
Species: N. decaisnei
Binomial name
Notoleptopus decaisnei
(Bentham) Vorontsov. & Petra Hoffm.
Type species
Notoleptopus decaisnei
(Bentham) Vorontsova & Petra Hoffm.

Notoleptopus decaisnei had long been treated as a species of Leptopus, but in 2007, a molecular phylogenetic study of DNA sequences found it to be sister to a clade consisting of Pseudophyllanthus and Poranthera.[1] In 2008, the new genus Notoleptopus was created for it.[2]


  1. ^ Maria S. Vorontsova, Petra Hoffmann, Olivier Maurin, and Mark W. Chase. 2007. "Phylogenetics of tribe Poranthereae (Phyllanthaceae)." American Journal of Botany 94(12):2026-2040.
  2. ^ Maria S. Vorontsova and Petra Hoffmann. 2008. "A phylogenetic classification of tribe Poranthereae (Phyllanthaceae)." Kew Bulletin 63(1):41-59.