''Seorsus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of ...

s in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Myrtaceae Myrtaceae, the myrtle family, is a family of dicotyledonous plants placed within the order Myrtales. Myrtle, pōhutukawa, bay rum tree, clove, guava, acca (feijoa), allspice, and eucalyptus are some notable members of this group. All spe ...

. The occurrence of the four species in Australia and

Borneo Borneo (; id, Kalimantan) is the List of islands by area, third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java Isl ...

is widely spaced, and is thought to be indicative that the genus predates the breakup of

Gondwana Gondwana () was a large landmass, often referred to as a supercontinent, that formed during the late Neoproterozoic (about 550 million years ago) and began to break up during the Jurassic period (about 180 million years ago). The final st ...

. Species include: *'' Seorsus aequatorius'' Rye & Trudgen - endemic to

West Kalimantan West Kalimantan ( id, Kalimantan Barat) is a province of Indonesia. It is one of five Indonesian provinces comprising Kalimantan, the Indonesian part of the island of Borneo. Its capital city is Pontianak. The province has an area of 147,307& ...

. *'' Seorsus clavifolius'' (C.A.Gardner) Rye & Trudgen (syn. ''

Astartea ''Astartea'' is a genus of flowering plants in the myrtle family, Myrtaceae. The genus is endemic to southwestern Western Australia. The genus name was inspired by Astarte, the Greek name for the goddess Ishtar.Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to ...

*'' Seorsus intratropicus'' (F.Muell.) Rye & Trudgen (syn. ''

Baeckea ''Baeckea'' is a genus of flowering plants in the myrtle family, Myrtaceae, all but one endemic to Australia. Plants in the genus ''Baeckea'' are shrubs or small trees with leaves arranged in opposite pairs, white to deep pink flowers with five s ...

intratropica'') - endemic to the

Northern Territory The Northern Territory (commonly abbreviated as NT; formally the Northern Territory of Australia) is an Australian territory in the central and central northern regions of Australia. The Northern Territory shares its borders with Western Au ...

. *''

Seorsus taxifolius ''Seorsus'' is a genus of flowering plants in the family (biology), family Myrtaceae. The occurrence of the four species in Australia and Borneo is widely spaced, and is thought to be indicative that the genus predates the breakup of Gondwana. ...

'' (Merr.) Rye & Trudgen (syn. ''Baeckea taxifolius'', ''

Babingtonia ''Babingtonia'' is a genus of flowering plants in the myrtle family, Myrtaceae. The species are native to Australia. Many species formerly placed in the genus are currently included in '' Sannantha'', ''Baeckea'', '' Oxymyrrhine'', '' Kardomia' ...

taxifolia'') - endemic to

Sarawak Sarawak (; ) is a state of Malaysia. The largest among the 13 states, with an area almost equal to that of Peninsular Malaysia, Sarawak is located in northwest Borneo Island, and is bordered by the Malaysian state of Sabah to the northeast, ...

in Borneo.

References

Myrtaceae Myrtaceae genera Taxa named by Barbara Lynette Rye Taxa named by Malcolm Eric Trudgen {{Myrtaceae-stub