Syncarpia is a small group of trees in the myrtle family (Myrtaceae) described as a genus in 1839. They are native to Queensland and New South Wales in Australia.
Thryptomene is a genus of small shrubs in the family Myrtaceae described as a genus in 1838. The entire genus is endemic to Australia.
Chamguava is a genus of the botanical family Myrtaceae, first described as a genus in 1991. It is native to southern Mexico and Central America.
- Chamguava gentlei(Lundell) Landrum - Chiapas, Belize, Guatemala, Honduras
- Chamguava musarum(Standl. & Steyerm.) Landrum - Guatemala
- Chamguava schippii(Standl.) Landrum - Guerrero, Chiapas, Belize, Guatemala, Panama
Blepharocalyx is a genus of plant in family Myrtaceae first described as a genus in 1854. It is native to South America and the West Indies.
- Blepharocalyx cruckshanksii(Hook. & Arn.) Nied. - Chile
- Blepharocalyx eggersii(Kiaerskou) L.R.Landrum - Lesser Antilles, Venezuela, Guyana, Peru, Brazil
- Blepharocalyx myriophyllus Mattos - Minas Gerais
- Blepharocalyx salicifolius(Kunth.) O.Berg - Brazil, Bolivia, Peru, Ecuador, Paraguay, Uruguay, N Argentina
Meteoromyrtus is a genus of plant in family Myrtaceae described as a genus in 1918. It contains only one known species, the critically endangered Meteoromyrtus wynaadensis, native to Theerthundamalai of Kannur district in the state of Kerala in India.
Mitranthes is a genus of plant in the family Myrtaceae described as a genus in 1856. It is native to Cuba and Jamaica in the West Indies.
- Mitranthes clarendonensis(Proctor) Proctor - Jamaica
- Mitranthes glabraProctor - Jamaica
- Mitranthes macrophyllaProctor - Jamaica
- Mitranthes maxonii(Britton & Urb.) Proctor - Jamaica
- Mitranthes niveaProctor - Jamaica
- Mitranthes ottonisO.Berg - W + C Cuba
- Mitranthes urbanianaBurret - Jamaica
Neomitranthes is a genus of plant in family Myrtaceae first described as a genus in 1977. The entire genus is endemic to Brazil.
Myrteola is a plant genus in the Myrtaceae described as a genus in 1856. It is native to South America and the Falkland Islands.
Barongia is a genus of flowering plants in the myrtle family, Myrtaceae first described as a genus in 1988. It contains only one known species, Barongia lophandra, endemic to the Cook region of Queensland, Australia.
Homalocalyx is a genus of shrubs in the family Myrtaceae described as a genus in 1857. The entire genus is endemic to Australia.
Homalospermum is a genus of plants in the myrtle family first described as a genus in 1843. It contains only one known species, Homalospermum firmum, endemic to the southwestern part of the State of Western Australia.
Kjellbergiodendron is a genus of the botanical family Myrtaceae, first described as a genus in 1936. It contains only one known species, Kjellbergiodendron celebicum, endemic to the Island of Sulawesi in Indonesia.
Myrtastrum is a genus of plants in the Myrtaceae first described as a genus in 1941. It contains only one known species, Myrtastrum rufopunctatum, endemic to New Caledonia. It is a phylogenetically isolated genus within the tribe Myrteae.
Myrtella is a genus of plants in the Myrtaceae described as a genus in 1877. It is native to New Guinea and to some islands of the western Pacific.
- Myrtella beccariiF.Muell. - New Guinea, Solomon Islands
- Myrtella bennigseniana(Volkens) Diels - New Guinea, Caroline Islands, Mariana Islands
Neomyrtus is a genus of plants in the family Myrtaceae described in 1941. It contains only one known species, Neomyrtus pedunculata, endemic to New Zealand. It is found there on both the North Island and the South Island.
Pleurocalyptus is a group of shrubs and small trees in the family Myrtaceae, first described as a genus in 1868. The entire genus is endemic to New Caledonia. It is closely related to Xanthostemon.
Pseudanamomis is a group of plants in the Myrtaceae described as a genus in 1956. There is only one known species, Pseudanamomis umbellulifera, native to the Dominican Republic, Trinidad, and northern South America.
Purpureostemon is a genus of plant in the myrtle family Myrtaceae described as a genus in 1939. There is only one known species, Purpureostemon ciliatus, endemic to New Caledonia. Purpureostemon is related to Xanthostemon.
Siphoneugena is a genus of the botanical family Myrtaceae, first described as a genus in 1856. It is native to Central and South America as well as the West Indies.
Stereocaryum is a group of flowering plants in the family Myrtaceae, described as a genus in 1941. The entire genus is endemic to New Caledonia.
- Stereocaryum neocaledonicum(Brongn. & Gris) A.J.Scott
- Stereocaryum ovigerum(Brongn. & Gris) Burret
- Stereocaryum rubiginosum(Brongn. & Gris) Burret
