Atalaya | |
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Atalaya salicifolia (type species) habit (above), foliage (below) | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Sapindales |
Family: | Sapindaceae |
Subfamily: | Sapindoideae |
Genus: | Atalaya Blume [1] |
Type species | |
Atalaya salicifolia | |
Species | |
See text |
Atalaya is a genus of eighteen species of trees and shrubs of the plant family Sapindaceae. As of 2013 [update] fourteen species grow naturally in Australia and in neighbouring New Guinea only one endemic species is known to science. Three species are known growing naturally in southern Africa, including two species endemic to South Africa and one species in South Africa, Eswatini and Mozambique. [1] [2] [3] [4] [5] [6]
One species A. salicifolia, which grows in Australia, has a wider distribution through nearby Timor and westwards through some more of the Lesser Sunda Islands (Indonesia). [2] This species has the widest distribution of all and is the type species—the first to have a formal scientific name, description and represent the genus. [7]
In biodiversity–rich New Guinea as of 2013 [update] , many areas do not have complete formal scientific botanical survey. In this context, science seems to have only recorded the knowledge of A. papuana growing there naturally as the putative sole endemic species. Regionally widespread A. salicifolia does not seem to have scientific records from New Guinea even though science has recorded it many times in the regions of northern Australia and Timor nearest to southern and western New Guinea. [4] [7]
In mainland Australia's warmer places, twelve species are known by published formal botanical descriptions—trees, shrubs and subshrubs, growing naturally in rainforests, brigalow scrubs, monsoon forests (rainforests in a climate of a summer wet season and cool dry season, with drought–deciduous trees), tropical savannas, coastal scrubs, some arid desert areas and in similar vegetation associations further south than the tropics. [6] Certain species particularly occur in Australia's restricted areas of naturally high nutrient soil types, for instances, soils built from limestone or basalt parent materials. Areas of more fertile soils than average Australian soils, have not surprisingly had their native vegetation associations preferentially destroyed for converting the soils to European–Australian agricultural methods. This has disproportionately brought about the decline of the specialised native plants of these soils. [6]
Two Australian species found in Queensland have herbarium specimen collections and published informal descriptions, but are awaiting formal publication of scientific descriptions and names. Collectively, the fourteen known Australian species range throughout warmer parts of the continent, including parts of the semi-arid and arid zones, in Queensland, the Northern Territory, Western Australia, New South Wales and South Australia, except for Tasmania and Victoria where they have not been recorded. [6] Some Australian species have very reduced, scarce or isolated known ranges and natural habitats, as of 2013 [update] . Atalaya collina Yarwun Whitewood trees, have a known range of only two very isolated populations to the west of Gladstone, Queensland, hence this species' populations have a national conservation status listing of "endangered" in the Australian government Environment Protection and Biodiversity Conservation Act 1999 (EPBC). [8]
Ian D. Cowie, Glenn M. Wightman and Benjamin Stuckey formally scientifically named and described the restricted endemic, unique, Atalaya brevialata subshrub species, in their recently published, Dec 2012, scientific paper. [2] [3] Botanists have found this species growing naturally only in a restricted area of the Darwin region of Australia. In their formal scientific description Cowie, Wightman and Stuckey have published the species global conservation status (IUCN) of "endangered" under the following criteria "IUCN B1, 2ab (i, ii, iii, iv, v)". [2] A. brevialata plants have the unusual and unique nature among Atalaya species of a suffruticose growing habit; meaning, in this case, a species which has evolved from an ancestral group of woody–trunked shrubs or trees into having woody growth only underground and above ground only leafy growth. They grow naturally only up to 45 cm (18 in) tall subshrubs, with the leafy above ground growth that dies back each dry season to the underground woody rootstocks. [2]
In South Africa three species grow naturally. The scarcity of A. natalensis trees and their restricted range has received the global conservation status (IUCN) of "vulnerable D2". [9] A. capensis has a global conservation status (IUCN) listing also, of "Lower Risk / conservation dependent" as of December 2013 [update] . [10]
In Papua New Guinea A. papuana grows naturally in coast monsoon dune scrub (coastal rainforests on dune soils that become seasonally dry, with deciduous trees), tropical savanna forests and in regenerating areas of regularly burning swamp forests and rainforests.
European science formally named and described the genus Atalaya in 1847, authored by Carl L. Blume, with the Timor type specimen of the species Atalaya salicifolia. [1]
Two species were formally described in 1965 by Pieter W. Leenhouts in preparations for treatment of the family Sapindaceae in Flora Malesiana . [11] In 1981, 1985 and 1991, Sally T. Reynolds scientifically described several new Australian species in two scientific journal articles and in her writing of the Atalaya section of the Flora of Australia (series). [6] [12] [13]
Australian species information was sourced from the authoritative Australian Plant Name Index and Australian Plant Census , [3] the Australian Tropical Rainforest Plants information system, [14] Fruits of the Australian Tropical Rainforest, [5] scientific journal papers, [12] [13] the Flora of New South Wales, [15] and the Flora of Australia . [6] Regarding taxa in New Guinea, Malesia and Africa only few information sources were found, such as the Census of Vascular Plants of Papua New Guinea, [4] Flora Malesiana, [7] and the South African National Biodiversity Institute web sites and the IUCN, respectively, thus for these lands this list may be incomplete.
Alectryon is a genus of about 30 species of trees and shrubs from the family Sapindaceae. They grow naturally across Australasia, Papuasia, Melanesia, western Polynesia, east Malesia and Southeast Asia, including across mainland Australia, especially diverse in eastern Queensland and New South Wales, the Torres Strait Islands, New Guinea, the Solomon Islands, New Caledonia, New Zealand, Vanuatu, Fiji, Samoa, Hawaii, Indonesia and the Philippines. They grow in a wide variety of natural habitats, from rainforests, gallery forests and coastal forests to arid savannas and heaths.
Jagera is a genus of 4 species of forest trees known to science, constituting part of the plant family Sapindaceae.
Castanospora is a monotypic genus of trees, constituting part of the plant family Sapindaceae. The sole species Castanospora alphandii, commonly known as brown tamarind, grows naturally in the Australian rainforests of north-eastern New South Wales and eastern Queensland as far north as the Wet Tropics rainforests of north-eastern Queensland.
Arytera is a genus of about twenty–eight species known to science, of trees and shrubs and constituting part of the plant family Sapindaceae. They grow naturally in New Guinea, Indonesia, New Caledonia, Australia, the Solomon Islands, Vanuatu, Fiji, Samoa, Tonga; and the most widespread species and type species A. littoralis grows throughout Malesia and across Southeast Asia, from NE. India, southern China, Borneo, Malaysia, Singapore, Indonesia and the Philippines to as far east as New Guinea and the Solomon Islands.
Elattostachys is a genus of about 21 species of trees known to science, constituting part of the plant family Sapindaceae.
Mischocarpus is a genus of about nineteen species of trees known to science, constituting part of the plant family Sapindaceae. They grow naturally from Australia and New Guinea, though Malesia as far north as the Philippines, through SE. Asia, Indo-China and S. China, to India at their farthest west. The eleven Australian species known to science grow naturally in the rainforests of the eastern coastal zone of New South Wales and Queensland, from Newcastle northwards through to north-eastern Queensland and Cape York Peninsula.
Pseuduvaria is a genus of the plant family Annonaceae and tribe Miliuseae: with a native range is Tropical Asia.
Wendlandia is a genus of flowering plants in the family Rubiaceae. It is found in northeastern tropical Africa, and from tropical and subtropical Asia to Queensland.
Jagera pseudorhus, commonly named foambark, is a species of rainforest trees, in the northern half of eastern Australia and in New Guinea, constituting part of the flowering plant family Sapindaceae. Named for the saponin foam that forms on the bark after heavy rain.
Tristiropsis is a genus of flowering tree species, of the plant family Sapindaceae and the monotypic tribe Tristiropsideae; its native range is Malesia, eastern Australia and the south-western Pacific.
Atalaya salicifolia is a species of tree native to dry rainforests of tropical and subtropical Australia, New Guinea and Malesia. The leaves of smaller trees of this species have a distinct winged rachis, in larger trees the rachis becomes increasingly cylindrical.
Hollandaea is a small genus of plants in the family Proteaceae containing four species of Australian rainforest trees. All four species are endemic to restricted areas of the Wet Tropics of northeast Queensland.
Mischarytera is a genus of rainforest trees, constituting part of the plant family Sapindaceae. Four species are known to science as of December 2013, found growing naturally in eastern Queensland, Australia, and in New Guinea. Formerly until 1995, they had names within the genus Arytera, subgenus Mischarytera.
Sarcotoechia is a genus of tropical rainforest trees, constituting part of the plant family Sapindaceae.
Synima is a genus of tropical rainforest trees, constituting part of the plant family Sapindaceae.
Lepidopetalum is a genus of six species of trees known to science, constituting part of the plant family Sapindaceae.
Cnesmocarpon is a genus of 4 species of rainforest trees known to science, constituting part of the plant family Sapindaceae.
Dictyoneura is a genus of two-to-three species of rainforest trees known to science, constituting part of the plant family Sapindaceae.
Alectryon connatus, sometimes named hairy alectryon, is a species of small tree in the plant family Sapindaceae.
Diploglottis bracteata, commonly known as Boonjee tamarind, is a plant in the lychee family Sapindaceae found only in the Wet Tropics bioregion of Queensland, Australia. It is a tree growing to about 25 m (82 ft) in height with a fluted trunk and distinctively large bracts of flowers. It was first described by the Dutch botanist Pieter Willem Leenhouts in 1978, and the common name refers to the area on the Atherton Tableland where the species occurs.