''Guioa'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of about 78

rainforest Rainforests are forests characterized by a closed and continuous tree Canopy (biology), canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforests can be generally classified as tropi ...

tree species known to science, which constitute part of the plant family

Sapindaceae The Sapindaceae are a family (biology), family of flowering plants in the order Sapindales known as the soapberry family. It contains 138 genera and 1,858 accepted species. Examples include Aesculus, horse chestnut, maples, ackee and lychee. The ...

. They have a wide distribution, ranging from throughout

Malesia Malesia is a biogeographical region straddling the Equator and the boundaries of the Indomalayan and Australasian realms. It is a phytogeographical floristic region in the Paleotropical kingdom. It was first recognized as a distinct region ...

, in

Burma Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and ha ...

Cambodia Cambodia, officially the Kingdom of Cambodia, is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. It is bordered by Thailand to the northwest, Laos to the north, and Vietnam to the east, and has a coastline ...

Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...

Thailand Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...

Malay Peninsula The Malay Peninsula is located in Mainland Southeast Asia. The landmass runs approximately north–south, and at its terminus, it is the southernmost point of the Asian continental mainland. The area contains Peninsular Malaysia, Southern Tha ...

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

Sumatra Sumatra () is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the list of islands by area, sixth-largest island in the world at 482,286.55 km2 (182,812 mi. ...

Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

Java Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea (a part of Pacific Ocean) to the north. With a population of 156.9 million people (including Madura) in mid 2024, proje ...

Flores Flores is one of the Lesser Sunda Islands, a group of islands in the eastern half of Indonesia. Administratively, it forms the largest island in the East Nusa Tenggara Province. The area is 14,250 km2. Including Komodo and Rinca islands ...

Timor Timor (, , ) is an island at the southern end of Maritime Southeast Asia, in the north of the Timor Sea. The island is Indonesia–Timor-Leste border, divided between the sovereign states of Timor-Leste in the eastern part and Indonesia in the ...

Sulawesi Sulawesi ( ), also known as Celebes ( ), is an island in Indonesia. One of the four Greater Sunda Islands, and the List of islands by area, world's 11th-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Min ...

Moluccas The Maluku Islands ( ; , ) or the Moluccas ( ; ) are an archipelago in the eastern part of Indonesia. Tectonically they are located on the Halmahera Plate within the Molucca Sea Collision Zone. Geographically they are located in West Melanesi ...

New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; , fossilized , also known as Papua or historically ) is the List of islands by area, world's second-largest island, with an area of . Located in Melanesia in the southwestern Pacific Ocean, the island is ...

, further southwards through the east coast of

Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...

and

New South Wales New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

and further eastwards to the

Pacific Islands The Pacific islands are a group of islands in the Pacific Ocean. They are further categorized into three major island groups: Melanesia, Micronesia, and Polynesia. Depending on the context, the term ''Pacific Islands'' may refer to one of several ...

, including

Tonga Tonga, officially the Kingdom of Tonga, is an island country in Polynesia, part of Oceania. The country has 171 islands, of which 45 are inhabited. Its total surface area is about , scattered over in the southern Pacific Ocean. accordin ...

New Caledonia New Caledonia ( ; ) is a group of islands in the southwest Pacific Ocean, southwest of Vanuatu and east of Australia. Located from Metropolitan France, it forms a Overseas France#Sui generis collectivity, ''sui generis'' collectivity of t ...

Fiji Fiji, officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists of an archipelago of more than 330 islands—of which about ...

and

Samoa Samoa, officially the Independent State of Samoa and known until 1997 as Western Samoa, is an island country in Polynesia, part of Oceania, in the South Pacific Ocean. It consists of two main islands (Savai'i and Upolu), two smaller, inhabited ...

. At global, national and regional government scales, many ''Guioa'' species have been threatened with extinction, as officially recognised by the

International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the stat ...

(IUCN) and by continental, national and local governments. Twenty five species, or more, have official IUCN global conservation statuses of either "critically endangered", "endangered" or "vulnerable" (to global extinction). The Australian species are known to the

logging Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidder, skidding, on-site processing, and loading of trees or trunk (botany), logs onto logging truck, truckscedars or the Australian members of the

Meliaceae Meliaceae, the mahogany family, is a flowering plant family of mostly trees and shrubs (and a few herbaceous plants, mangroves) in the order Sapindales. They are characterised by alternate, usually pinnate leaves without stipules, and by syncarp ...

which are known as cedars.

Selected species

This incomplete listing was sourced from Peter C. van Welzen's 1989 revision of the genus and earlier scientific papers, the ''

Australian Plant Name Index The Australian Plant Name Index (APNI) is an online database of all published names of Australian vascular plants. It covers all names, whether current names, synonyms or invalid names. It includes bibliographic and typification details, informati ...

'' and ''

Australian Plant Census The Australian Plant Census (APC) provides an online interface to currently accepted, published, scientific names of the vascular flora of Australia, as one of the output interfaces of the national government Integrated Biodiversity Information Sys ...

'', the ''Census of Vascular Plants of Papua New Guinea'', ''

Flora Malesiana ''Flora Malesiana'' is a multi-volume flora describing the vascular plants of Malesia (the biogeographical region consisting of Indonesia, Malaysia, Singapore, Brunei, the Philippines, and Papua New Guinea), published by the National Herbarium of t ...

'', the ''Checklist of the vascular indigenous Flora of New Caledonia'', ''Flora Vitiensis'' (Fiji), and the ''Flora of Tonga''. * '' Guioa acuminata'' – Philippines, New Guinea – Endangered * ''

Guioa acutifolia ''Guioa acutifolia'' is an evergreen tree from New Guinea and coastal areas of eastern Queensland in Australia. Common names include glossy tamarind, northern guioa and sharp-leaf guioa. It grows up to 20 metres high and has smooth, grey bark ...

'' , Glossy tamarind – New Guinea, Moluccas, Qld, Australia * '' Guioa amabilis'' – Vogelkop Peninsula, New Guinea * '' Guioa aryterifolia'' – New Guinea * '' Guioa asquamosa'' – Flores, Timor – Vulnerable * '' Guioa bicolor'' – Philippines – Vulnerable * '' Guioa bijuga'' – Thailand, Malay Peninsula, Borneo, Sumatra, Philippines * '' Guioa capillacea'' – Fiji endemic * '' Guioa chrysea'' – Fiji endemic * '' Guioa comesperma'' – New Guinea incl. surrounding islands, Qld, Australia * '' Guioa contracta'' – New Guinea * '' Guioa coriacea'' –

Lord Howe Island Lord Howe Island (; formerly Lord Howe's Island) is an irregularly crescent-shaped volcanic remnant in the Tasman Sea between Australia and New Zealand, part of the Australian state of New South Wales. It lies directly east of mainland Port ...

endemic * '' Guioa crenata'' – New Caledonia endemic * '' Guioa crenulata'' – New Caledonia endemic * '' Guioa diplopetala'' – Burma, Thailand, Cambodia, Vietnam, Malay Peninsula, Borneo, Sumatra, Sulawesi, Java * '' Guioa discolor'' – Philippines – Endangered * '' Guioa elliptica'' – New Guinea * '' Guioa eriantha'' – New Guinea * '' Guioa fusca'' – New Caledonia endemic * '' Guioa glauca'' – New Caledonia endemic ** var. ''glauca'' – New Caledonia endemic ** var. ''vulgaris'' – New Caledonia endemic * '' Guioa gracilis'' – New Caledonia endemic * '' Guioa grandifoliola'' – New Guinea – Critically endangered * '' Guioa hirsuta'' – Sulawesi * '' Guioa hospita'' – New Guinea – Critically endangered * '' Guioa koelreuteriana'' – Borneo, Philippines, New Guinea * '' Guioa lasioneura'' – Qld, Australia * '' Guioa lentiscifolia'' – Tonga endemic * ''

Guioa malukuensis ''Guioa malukuensis'' is a species of plant in the family Sapindaceae. It is a tree endemic to the Maluku Islands in Indonesia. It is a vulnerable species threatened by habitat loss Habitat destruction (also termed habitat loss or habitat r ...

'' – Moluccas – Vulnerable * '' Guioa megacarpa'' – New Guinea * '' Guioa melanopoda'' – W. New Guinea – Vulnerable * ''

Guioa membranifolia ''Guioa'' is a genus of about 78 rainforest tree species known to science, which constitute part of the plant family Sapindaceae. They have a wide distribution, ranging from throughout Malesia, in Burma, Cambodia, Vietnam, Thailand, Malay Peninsu ...

'' – W. New Guinea, Moluccas * '' Guioa microsepala'' – New Caledonia endemic * '' Guioa misimaensis'' – New Guinea * '' Guioa molliuscula'' – New Guinea – Vulnerable * '' Guioa montana'' – Qld, Australia * '' Guioa multijuga'' – W. New Guinea – Vulnerable * '' Guioa myriadenia'' – Philippines – Endangered * '' Guioa normanbiensis'' – New Guinea – Vulnerable * '' Guioa novobritannica'' – New Guinea – Vulnerable * '' Guioa oligotricha'' – New Guinea – Vulnerable * '' Guioa ovalis'' – New Caledonia * '' Guioa palawanica'' – Philippines – Critically endangered * '' Guioa parvifoliola'' – Philippines – Critically endangered * '' Guioa patentinervis'' – Moluccas – Vulnerable * '' Guioa pauciflora'' – New Guinea – Vulnerable * '' Guioa pectinata'' – New Caledonia endemic * '' Guioa pleuropteris'' – Burma, Cambodia, Vietnam, Thailand, E. Malay Peninsula, Borneo, Sumatra, Philippines * '' Guioa plurinervis'' – New Guinea – Vulnerable * '' Guioa pseudoamabilis'' – New Guinea * '' Guioa pteropoda'' – New Guinea, Moluccas * '' Guioa pterorhachis'' – Borneo * '' Guioa pubescens'' – W. Malaysia, Singapore, Borneo, Sumatra, Banka, W. Java, Philippines * '' Guioa reticulata'' – Philippines – Critically endangered * '' Guioa rhoifolia'' – Fiji, Samoa * '' Guioa rigidiuscula'' – New Guinea * '' Guioa sarcopterifructa'' – Qld, Australia * '' Guioa scalariformis'' – New Guinea – Vulnerable * '' Guioa semiglauca'' , Guioa – Qld & NSW, Australia * '' Guioa subsericea'' – New Guinea * '' Guioa sufusana'' – New Guinea * '' Guioa truncata'' – Philippines – Endangered * '' Guioa unguiculata'' – New Guinea – Vulnerable * '' Guioa venusta'' – W. New Guinea – Vulnerable * '' Guioa villosa'' – New Caledonia endemic * '' Guioa waigeoensis'' – W. New Guinea – Vulnerable ;Formerly included here: * ''Guioa dasyantha'' ⇒ '' Cnesmocarpon dasyantha'' – New Guinea, Australia

References

External links

* * {{Authority control Sapindaceae genera Sapindales of Australia Taxa named by Antonio José Cavanilles