Seorsus
Encyclopedia
Seorsus is a genus of flowering plant
s in the 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
.
Species include:
Flowering plant
The flowering plants , also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies...
s in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Myrtaceae
Myrtaceae
The Myrtaceae or Myrtle family are a family of dicotyledon plants, placed within the order Myrtales. Myrtle, clove, guava, feijoa, allspice, and eucalyptus belong here. All species are woody, with essential oils, and flower parts in multiples of four or five...
.
The occurrence of the four species in Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
and Borneo
Borneo
Borneo is the third largest island in the world and is located north of Java Island, Indonesia, at the geographic centre of Maritime Southeast Asia....
is widely spaced, and is thought to be indicative that the genus predates the breakup of Gondwana
Gondwana
In paleogeography, Gondwana , originally Gondwanaland, was the southernmost of two supercontinents that later became parts of the Pangaea supercontinent. It existed from approximately 510 to 180 million years ago . Gondwana is believed to have sutured between ca. 570 and 510 Mya,...
.
Species include:
- Seorsus aequatorius Rye & Trudgen - endemic to West KalimantanWest KalimantanWest Kalimantan is a province of Indonesia. It is one of four Indonesian provinces in Kalimantan, the Indonesian part of the island of Borneo. Its capital city Pontianak is located right on the Equator....
in BorneoBorneoBorneo is the third largest island in the world and is located north of Java Island, Indonesia, at the geographic centre of Maritime Southeast Asia....
. - Seorsus clavifolius (C.A.Gardner) Rye & Trudgen (syn. AstarteaAstarteaAstartea is a genus of the botanical family Myrtaceae. The genus is endemic to the south west of Western Australia.Species include:*Astartea affinis Rye*Astartea ambigua F.Muell.*Astartea aspera Schauer...
clavifolia) - endemic to the south-west of Western AustraliaWestern AustraliaWestern Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east... - Seorsus intratropicus (F.Muell.) Rye & Trudgen (syn. BaeckeaBaeckeaBaeckea is a genus of 75 species of shrub in the myrtle family Myrtaceae. They are found in Australia, New Caledonia and Southeast Asia with Australia having the largest distribution.They are small shrubs closely resembling Leptospermum....
intratropica) - endemic to the Northern TerritoryNorthern TerritoryThe Northern Territory is a federal territory of Australia, occupying much of the centre of the mainland continent, as well as the central northern regions...
. - Seorsus taxifolius (Merr.) Rye & Trudgen (syn. Baeckea taxifolius, Babingtonia taxiolia) - endemic to SarawakSarawakSarawak is one of two Malaysian states on the island of Borneo. Known as Bumi Kenyalang , Sarawak is situated on the north-west of the island. It is the largest state in Malaysia followed by Sabah, the second largest state located to the North- East.The administrative capital is Kuching, which...
in Borneo.