The Thymelaeaceae are a cosmopolitan family of flowering plants composed of 50 genera and 898 species. It was established in 1789 by Antoine Laurent de Jussieu. The Thymelaeaceae are mostly trees and shrubs, with a few vines and herbaceous plants.
Phelline is a genus of shrubs and the sole member of the family Phellinaceae, a family of flowering plants endemic to New Caledonia. It is placed in the order Asterales and is related to two other small plant families: Alseuosmiaceae and Argophyllaceae. It contains ten species.
Balanops is a group of flowering plants described as a genus in 1871. The nine species are trees or shrubs, found in New Caledonia, Fiji, Vanuatu, and northern Queensland. They are dioecious, with separate male and female plants.
Alphandia is a plant genus of the family Euphorbiaceae first described as a genus in 1873. It is native to certain islands in the western Pacific.
- Alphandia furfuraceaBaill. - New Caledonia, Aneityum
- Alphandia resinosaBaill. - Art Island in New Caledonia
- Alphandia verniciflua Airy Shaw - West New Guinea
Longetia is a genus of plants under the family Picrodendraceae first described as a genus in 1866. It has only one known species, Longetia buxoides, endemic to New Caledonia.
Gnidia is a genus of flowering plants in the family Thymelaeaceae. It is distributed in tropical and southern Africa and Madagascar; more than half of all the species are endemic to South Africa. Gnidia was named for Knidos, an Ancient Greek city located in modern-day Turkey.
Oncotheca is a genus of tree endemic to New Caledonia. There are two species, Oncotheca balansae and Oncotheca humboldtiana.
Arthroclianthus is a genus of flowering plants in the family Fabaceae. It belongs to the subfamily Faboideae. Its 13–19 species are all endemic to New Caledonia. Its closest relatives include Nephrodesmus, also endemic to New Caledonia, Ohwia and Hanslia.
Phaleria is flowering plant genus of about 25 species in the family Thymelaeaceae, which range from Sri Lanka to Malesia, Papuasia, northern and eastern Australia, and the tropical Pacific Islands.
Dubouzetia is a genus of about eleven species known to science, growing from shrubs up to large trees, in Papuasia and Australasia and constituting part of the plant family Elaeocarpaceae.
Neoschmidia is a genus of shrubs in the family Rutaceae. The genus is endemic to New Caledonia in the Pacific and contains two species.
Maxwellia lepidota is a species of shrubs or trees in the family Malvaceae. It is endemic to New Caledonia and the only species of the monotypic genus Maxwellia. Its closest relatives are all Australian genera in tribe Lasiopetaleae: Guichenotia, Hannafordia, Lysiosepalum, Lasiopetalum and Thomasia.
Deltaria brachyblastophora is a species of shrubs in the Thymelaeaceae family. It is endemic to New Caledonia and the only species of the genus Deltaria. It is related to Arnhemia, Gonystylus, Lethedon and Solmsia.
Mangenotiella is a monotypic genus of shrub in the family Primulaceae. Its only species is Mangenotiella stellata, endemic to New Caledonia.
Cyathopsis is a genus of shrubs in the family Ericaceae. The genus is endemic to New Caledonia in the Pacific and contains three species that have previously been included in Styphelia. It is related to genera such as Leucopogon, Lissanthe and Styphelia.
Gastrolepis is a genus of shrubs and trees in the family Stemonuraceae. The genus is endemic to New Caledonia in the Pacific and contains two species.
Lethedon is a genus of shrubs in the Thymelaeaceae family native to Queensland, New Caledonia, and Vanuatu. It is related to Arnhemia, Deltaria, Gonystylus and Solmsia.
Diarthron is a genus of flowering plant in the family Thymelaeaceae. The precise limits of the genus are uncertain. When broadly circumscribed to include Dendrostellera and Stelleropsis, it consists of annual and perennial herbaceous plants and small shrubs, with reddish, white or green flowers lacking petals. It includes 16 species which range from southern European Russia and the Caucasus through Western and Central Asia through China and Mongolia to Korea and the Russian Far East.
Stigmatodactylus elegans, commonly known as the elegant acianthus, is a species of mosquito orchids, plants in the genus Acianthus. It is found in New Caledonia.
Ostrearia is a monotypic genus - i.e. a genus containing only one species - of plants in the witch-hazel family Hamamelidaceae. It is the first described of three monotypic Australian genera in this family, the others being Neostrearia and Noahdendron. It is most closely related to these genera, as well as Trichocladus from southern Africa and Dicoryphe from Madagascar, and together these five genera form a distinct clade within Hamamelidaceae.
