Geijera

Last updated

Geijera
Geijera parviflora 3.jpg
Geijera parviflora
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Subfamily: Zanthoxyloideae
Genus: Geijera
Schott [1]

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.

Contents

Description

Plants in the genus Geijera are shrubs or trees with simple leaves arranged alternately. They have small, bisexual flowers arranged in many-flowered panicles in upper leaf axils and on the ends of branchlets and usually have five, sometimes four sepals, petals and stamens. The sepals are fused at the base, up to 1 mm (0.039 in) long, and persist in the fruit. The petals are white or cream-coloured, up to 2 mm (0.079 in) long and the stamens are up to 1.5 mm (0.059 in) long and arranged opposite the sepals. The fruit consists of up to five more or less spherical follicles joined at the base each with a single shiny black seed. [2] [3] [4]

Taxonomy

The genus Geijera was first formally described in 1834 by Schott in his book Rutaceae - Fragmenta Botanica and the first species to be describe (the type species) was Geijera salicifolia . [5] The name Geijera honours J.D. Geijer, a 17th century Swedish botanist. [2]

Species list

The following is a list of species accepted by the Australian Plant Census, [6] or Plants of the World Online* [7] for species outside Australia:

Plants of the World Online includes G. helmsiae and G. paniculata but the Australian Plants Census lists these as synonyms of Coatesia paniculata . [8]

Distribution and habitat

Most species of Geijera grow in tropical or subtropical rainforest. Three species occur on New Caledonia, and three in Australia, two of which are endemic. [3]

Related Research Articles

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

Murraya is a genus of flowering plants in the citrus family, Rutaceae. It is distributed in Asia, Australia, and the Pacific Islands. The center of diversity is in southern China and Southeast Asia.

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

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.

<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>Geijera salicifolia</i> Species of flowering plant

Geijera salicifolia, commonly known as glasswood, green satinheart or scrub wilga, is a species of shrub or tree in the family Rutaceae and is native to Australia, New Guinea and New Caledonia. It has narrow elliptic to egg-shaped leaves, small white flowers in loose groups and oval to more or less spherical fruit, each containing a shiny black seed.

<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>Melicope micrococca</i> Species of tree

Melicope micrococca, commonly known as hairy-leaved doughwood or white euodia, is a species of shrub or slender tree in the family Rutaceae and is endemic to eastern Australia. It has trifoliate leaves and white flowers borne in panicles in leaf axils.

<i>Geijera parviflora</i> Species of plant

Geijera parviflora, commonly known as wilga, is a species of shrub or small tree in the family Rutaceae and is endemic to inland parts of eastern Australia. It has drooping branches, linear to narrow lance-shaped leaves, small white flowers in loose panicles and spherical fruit containing a shiny black seed. Other vernacular names include Australian willow, native willow, sheepbush and dogwood.

Melicope contermina is a species of shrub or small tree in the family Rutaceae and is endemic to Lord Howe Island. It has trifoliate leaves and white flowers borne in leaf axils in panicles of nine to fifteen flowers.

<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.

Coatesia is a genus of plant containing the single species Coatesia paniculata, commonly known as axe-breaker or capivi, and is endemic to eastern Australia. It is a small, evergreen tree with simple, elliptical to egg-shaped leaves, panicles of white flowers on the ends of branchlets or in leaf axils and fused follicles with one black seed in each follicle.

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

Dinosperma is a genus of plant containing the single species Dinosperma erythrococcum, commonly known as tingletongue, clubwood or nutmeg, and is endemic to north-eastern Australia. It is a tree usually with trifoliate leaves arranged in opposite pairs, the leaflets lance-shaped to oblong, and panicles of small white flowers, later bright orange to red, slightly fleshy follicles containing shiny, bluish black seeds.

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.

Melicope hayesii, commonly known as small-leaved doughwood, is a species of shrub or slender tree in the family Rutaceae and is endemic to eastern Australia. It has trifoliate leaves and small white flowers borne in panicles in leaf axils.

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

Melicope jonesii is a species of tree in the family Rutaceae and is endemic to north-east Queensland. It has trifoliate leaves and greenish or cream-coloured flowers borne in short panicles in leaf axils.

Melicope peninsularis is a species of small tree in the family Rutaceae and is endemic to tropical north Queensland. It has trifoliate leaves and white flowers borne in short panicles in leaf axils.

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

Melicope vitiflora, commonly known as northern evodia, fishpoison wood, leatherjacket or leatherwood, is a species of shrub or small tree in the family Rutaceae and is native to north-eastern Australia and New Guinea. It has trifoliate leaves and green to white or cream-coloured flowers borne in panicles in leaf axils.

References

  1. "Geijera". Australian Plant Census. Retrieved 20 July 2020.
  2. 1 2 Hartley, Thomas G.; Wilson, Annette J.G. (ed.) (2013). Flora of Australia (Volume 26). Canberra: Australian Biological Resources Study. p. 78. Retrieved 20 July 2020.CS1 maint: extra text: authors list (link)
  3. 1 2 Duretto, Marco F. "Geijera". Royal Botanic Gardens Victoria. Retrieved 20 July 2020.
  4. Duretto, Marco F/. "Genus Geijera". Royal Botanic Garden Sydney. Retrieved 20 July 2020.
  5. "Geijera". APNI. Retrieved 20 July 2020.
  6. "Geijera". Australian Plant Census. Retrieved 20 July 2020.
  7. "Geijera". Plants of the World Online. Retrieved 20 July 2020.
  8. "Coatesia paniculata". Australian Plant Census. Retrieved 20 July 2020.