Medicosma

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Medicosma
Medicosma cunninghamii and flower.jpg
Medicosma cunninghamii in the Royal Botanic Garden, Sydney
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Subfamily: Zanthoxyloideae
Genus: Medicosma
Hook.f. [1]
Synonyms [1]

Medicosma is a genus of shrubs and trees in the family Rutaceae, all native to New Guinea, Australia or New Caledonia. They usually have simple leaves arranged in opposite pairs, flowers arranged in cymes with four sepals, four petals and eight stamens. The fruit is a follicle fused at the base in groups of up to four, each containing one or two brown or black seeds.

Contents

Description

Plants in the genus Medicosma are shrubs or trees that usually have simple leaves arranged in opposite pairs but the leaves are sometimes arranged alternately and sometimes trifoliate. The flowers are usually arranged in cymes, sometimes solitary, in leaf axils and are usually bisexual with four sepals, four petals and eight stamens. The sepals are fused at the base and persist in the fruit. The petals are usually free from each other but usually overlap each other slightly. The fruit consists of up to four oval follicles fused at the base, each containing one or two brown to black seeds. [2] [3]

Taxonomy

The genus Medicosma was first formally described in 1862 by William Jackson Hooker in Genera Plantarum . [4] [5]

Species list

The following is a list of species accepted by Plants of the World Online as at July 2020: [6]

Related Research Articles

<i>Correa</i> (plant) Genus of flowering plants

Correa is a genus of eleven species of flowering plants in the family Rutaceae that are endemic to Australia. Plants in the genus Correa are shrubs to small trees with simple leaves arranged in opposite pairs, bisexual flowers with four sepals, four petals usually fused for most of their length and eight stamens.

<i>Melicope</i> Genus of plants

Melicope is a genus of about 240 species of shrubs and trees in the family Rutaceae, occurring from the Hawaiian Islands across the Pacific Ocean to tropical Asia, Australia and New Zealand. Plants in the genus Melicope have simple or trifoliate leaves arranged in opposite pairs, flowers arranged in panicles, with four sepals, four petals and four or eight stamens and fruit composed of up to four follicles.

<i>Angophora</i> Genus of flowering plants

Angophora is a genus of nine species of trees and shrubs in the myrtle family, Myrtaceae. Endemic to eastern Australia, they differ from other eucalypts in having juvenile and adult leaves arranged in opposite pairs, sepals reduced to projections on the edge of the floral cup, four or five overlapping, more or less round petals, and a papery or thin, woody, often strongly ribbed capsule. Species are found between the Atherton Tableland in Queensland and south through New South Wales to eastern Victoria, Australia.

<i>Flindersia</i> Genus of flowering plants

Flindersia is a genus of 17 species of small to large trees in the family Rutaceae. They have simple or pinnate leaves, flowers arranged in panicles at or near the ends of branchlets and fruit that is a woody capsule containing winged seeds. They grow naturally in Australia, the Moluccas, New Guinea and New Caledonia.

<i>Bosistoa</i> Genus of flowering plants

Bosistoa is a genus of four species of tree in the family Rutaceae endemic to eastern Australia. They have simple or compound leaves arranged in opposite pairs and bisexual flowers arranged in panicles, each flower with five sepals, five white petals and ten stamens.

<i>Geijera</i> Genus of flowering plants

Geijera is a genus of shrubs and trees in the family Rutaceae and are native to New Guinea, Australia and New Caledonia. They have simple leaves arranged alternately, panicles of bisexual flowers usually with five, sometimes four, sepals, petals and stamens and fruit containing shiny black seeds.

<i>Acronychia</i> Genus of flowering plants

Acronychia is a genus of about fifty species of plants in the rue family Rutaceae. The leaves are simple or pinnate, and the flowers bisexual with four sepals, four petals and eight stamens. They have a broad distribution including in India, Malesia, Australia and the islands of the western Pacific Ocean. About twenty species are endemic to Australia.

<i>Asterolasia</i> Genus of flowering plants

Asterolasia is a genus of seventeen species of erect or prostrate shrubs in the family Rutaceae, and is endemic to Australia. The leaves are simple and arranged alternately, the flowers arranged in umbel-like groups on the ends of branchlets or in leaf axils, usually with five sepals, five petals and ten to twenty-five stamens. There are seventeen species and they are found in all Australian mainland states but not in the Northern Territory.

<i>Phebalium</i> Genus of shrubs

Phebalium is a genus of thirty species of shrubs or small trees in the family Rutaceae and is endemic to Australia. The leaves are arranged alternately, simple and often warty, the flowers arranged singly or in umbels on the ends of branchlets or in leaf axils, usually with five sepals, five petals and ten stamens. There are about thirty species and they are found in all Australian states but not in the Northern Territory.

<i>Sarcomelicope</i> Genus of flowering plants

Sarcomelicope is a genus of about ten species of flowering plants in the family Rutaceae that are endemic to the South Pacific.

<i>Acradenia</i> Genus of flowering plants

Acradenia is a genus of two species of tree or shrub in the family Rutaceae and is endemic to Australia. These plants have leaves that are trifoliate, arranged in opposite pairs and flowers that have five sepals, five petals and usually ten stamens of unequal lengths.

<i>Nematolepis</i> Genus of shrubs

Nematolepis is a genus of seven species of plants in the family Rutaceae, all endemic to Australia. They are shrubs or small trees with more or less flat leaves arranged alternately and flowers with five overlapping petals and ten stamens. Six species are found in eastern Australia and one in Western Australia.

<i>Acronychia laevis</i> Species of flowering plant

Acronychia laevis, commonly known as hard aspen, glossy acronychia or northern white lilly pilly, is a species of shrub or small tree in the citrus family, and is endemic to eastern Australia. It has simple, elliptical to egg-shaped leaves, groups of creamy white flowers and fleshy, mitre-shaped to spherical fruit.

<i>Bouchardatia</i> Genus of flowering plants

Bouchardatia is a genus of two species of tree in the family Rutaceae, one species endemic to eastern Australia, the other to New Guinea. They have compound leaves with three or five leaflets, and are arranged in opposite pairs. The flowers are bisexual, arranged in panicles, each flower with four sepals, four petals and eight stamens, the petals and stamens all free from each other. The fruit has up to four ridged follicles fused at the base, each containing a single seed.

Medicosma elliptica, commonly known as Bulburin medicosma, is a species of shrub or small tree in the family Rutaceae and is endemic to a restricted area of Queensland. It has elliptical leaves and white flowers borne singly or in small groups in leaf axils.

<i>Medicosma fareana</i> Species of tree

Medicosma fareana, commonly known as white aspen, is a species of rainforest small tree in the family Rutaceae and is endemic to north Queensland. It has elliptical leaves and white or cream-coloured flowers borne singly or in small groups in leaf axils.

Medicosma obovata is a species of shrub or small tree in the family Rutaceae and is endemic to a restricted area of far north Queensland. It has simple egg-shaped leaves with the narrower end towards the base and white flowers borne singly or in small groups in leaf axils.

<i>Medicosma sessiliflora</i> Species of shrub

Medicosma sessiliflora is a species of shrub or small tree in the family Rutaceae and is endemic to far north Queensland. It has simple elliptical to egg-shaped leaves with the narrower end towards the base and cream-coloured flowers borne singly or in small groups in leaf axils.

Melicope affinis is a species of shrub or tree in the family Rutaceae and is endemic to Queensland. It has trifoliate leaves and small greenish white flowers borne in panicles in leaf axils.

<i>Melicope xanthoxyloides</i> Species of tree

Melicope xanthoxyloides is a species of small tree in the family Rutaceae and is native to New Guinea and Queensland. It has trifoliate leaves and small green to yellow or cream-coloured flowers arranged in panicles in leaf axils.

References

  1. 1 2 "Medicosma". Australian Plant Census. Retrieved 21 July 2020.
  2. Richards, P.G. "Genus Medicosma". Royal Botanic Garden Sydney. Retrieved 21 July 2020.
  3. Hartley, Thomas G.; Wilson, Annette J.G. (ed.) (2013). Flora of Australia (Volume 26). Canberra: Australian Biological Resources Study. pp. 88–89. Retrieved 21 July 2020.{{cite book}}: |first2= has generic name (help)
  4. "Medicosma". APNI. Retrieved 21 July 2020.
  5. Hooker, William Jackson; Bentham, George (ed.) (7 August 1862). Genera Plantarum (Volume 1). Vol. 1. London: A. Black. p. 281. Retrieved 21 July 2020.{{cite book}}: |first2= has generic name (help)
  6. "Medicosma". Plants of the World Online. Retrieved 21 July 2020.