Macadamia is a genus of four species of trees in the flowering plant family Proteaceae. They are indigenous to Australia, native to northeastern New South Wales and central and southeastern Queensland specifically. Two species of the genus are commercially important for their fruit, the macadamia nut. Global production in 2015 was 160,000 tonnes. Other names include Queensland nut, bush nut, maroochi nut, bauple nut and, in the USA, they are also known as Hawaii nut. In Australian Aboriginal languages, the fruit is known by names such as bauple, gyndl or jindilli and boombera. It was an important source of bushfood for the Aboriginal peoples who are the original inhabitants of the area.
Knightia is a small genus of the family Proteaceae endemic to New Zealand, named in honor of Thomas Andrew Knight. One extant species, K. excelsa (rewarewa) is found in New Zealand. Two further Knightia species are found in New Caledonia, although they were placed in the genus Eucarpha by Lawrie Johnson and Barbara Briggs in their influential 1975 monograph "On the Proteaceae: the evolution and classification of a southern family", a placement supported in a 2006 classification of the Proteaceae. A fossil species from upper Miocene deposits in Kaikorai has been described as Knightia oblonga. Knightia has been placed in the tribe Roupaleae of the subfamily Grevilleoideae.
Stenocarpus is a genus of about 22 species of flowering plants in the family Proteaceae. They are trees or shrubs with variably-shaped leaves, zygomorphic, bisexual flowers, the floral tube opening on the lower side before separating into four parts, followed by fruit that is usually a narrow oblong or cylindrical follicle.
The Proteaceae form a family of flowering plants predominantly distributed in the Southern Hemisphere. The family comprises 83 genera with about 1,660 known species. Australia and South Africa have the greatest concentrations of diversity. Together with the Platanaceae, Nelumbonaceae and in the recent APG IV system the Sabiaceae, they make up the order Proteales. Well-known 'Proteaceae genera include Protea, Banksia, Embothrium, Grevillea, Hakea and Macadamia. Species such as the New South Wales waratah, king protea, and various species of Banksia, Grevillea, and Leucadendron are popular cut flowers. The nuts of Macadamia integrifolia are widely grown commercially and consumed, as are those of Gevuina avellana on a smaller scale.
The Grevilleoideae are a subfamily of the plant family Proteaceae. Mainly restricted to the Southern Hemisphere, it contains around 46 genera and about 950 species. Genera include Banksia, Grevillea, and Macadamia.
Beauprea is a genus of flowering plants in the family Proteaceae. Its 13 extant species are endemic to New Caledonia, though closely related forms have been found in the fossil records of Australia and New Zealand. Its closest extant relatives are the African Protea and Faurea.
Bleasdalea is a genus of flowering plants in the family Proteaceae.
Heliciopsis is a genus of about thirteen species of trees, constituting part of the flowering plant family Proteaceae. They grow naturally in Burma, Indo-China, SE. China, Thailand, Peninsular Malaysia, Borneo, Sumatra, Java (Indonesia) and the Philippines. The name means similar to the plant genus Helicia. Its closest relatives are Athertonia (Australia) and Virotia.
Kermadecia is a genus of flowering plants in the family Proteaceae. The genus comprises eight species of rainforest trees from New Caledonia, Fiji, and Vanuatu. Its closest relative is Euplassa from South America.
Virotia neurophylla is a species of plant in the family Proteaceae. It is endemic to New Caledonia. It is threatened by habitat loss. It has recently been transferred to the genus Virotia, which is also endemic to New Caledonia.
Pancheria is a genus of shrubs and trees in the family Cunoniaceae. It is to endemic to New Caledonia and contains 27 species. Leaves or whorled, simple or pinnate. The flowers are arranged in capitula, fruits are follicular. The species are dioecious. The genus is well diversified on ultramafic rocks and some species are nickel hyperaccumulators. It is related to Cunonia and Pterophylla. It was named after Jean Armand Isidore Pancher.
Xanthostemon is a genus of plants in the myrtle family Myrtaceae, first described in 1857 by the German–born Australian botanist Ferdinand von Mueller. The genus is distributed across Malesia, Papuasia and northern Australia. The genera Pleurocalyptus and Purpureostemon from New Caledonia are morphologically close to Xanthostemon.
Cunonia is a genus of shrubs and trees in the family Cunoniaceae. The genus has a disjunct distribution, with 24 species endemic to New Caledonia in the Pacific, and one species in Southern Africa. Leaves are opposite, simple or pinnate with a margin entire to serrate. Interpetiolar stipules are often conspicuous and generally enclose buds to form a spoon-like shape. Flowers are bisexual, white, red, or green, arranged in racemes. The fruit is a capsule opening first around the base then vertically, seeds are winged.
Codia is a genus of trees and shrubs in the family Cunoniaceae. The genus is endemic to New Caledonia in the Pacific and contains 15 species. The leaves are opposite or whorled, simple, and the margin usually entire. The flowers are arranged in capitula. the ovary is inferior. The fruit is indehiscent and is covered with woolly hairs.
Lasjia is a genus of five species of trees of the family Proteaceae. Three species grow naturally in northeastern Queensland, Australia and two species in Sulawesi, Indonesia. Descriptively they are the tropical or northern macadamia trees group. Lasjia species characteristically branched compound inflorescences differentiate them from the Macadamia species, of Australia, which have characteristically unbranched compound inflorescences and only grow naturally about 1,000 km (620 mi) further to the south, in southern and central eastern Queensland and in northeastern New South Wales.
Eucarpha is a genus of flowering plant of the family Proteaceae, endemic to New Caledonia. Two species are recognised. Up to 1975, these were classified within the genus Knightia until Lawrence Johnson and Barbara G. Briggs recognised their distinctness, particularly their prominent bracts, in their 1975 monograph "On the Proteaceae: the evolution and classification of a southern family". Nomenclatural combinations for these two species in the genus Eucarpha were published in 2022.
Sleumerodendron is a monotypic genus of plant in the family Proteaceae. The sole species is Sleumerodendron austrocaledonicum.
Turrillia is a genus of plants in the family Proteaceae, native to Oceania.
Dubouzetia is a genus of about eleven species known to science, growing from shrubs up to large trees, in Papuasia and Australasia and constituting part of the plant family Elaeocarpaceae.
Eucarpha deplanchei is a species of flowering plant in the family Proteaceae, native to New Caledonia. It was first described in 1865 as Knightia deplanchei.
