Bontia

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Bontia
Bontia daphnoides (5819100012).jpg
Flower of cultivated specimen of Bontia daphnoides growing at Oʻahu
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Tribe: Myoporeae
Genus: Bontia
L.
Species:
B. daphnoides
Binomial name
Bontia daphnoides
Synonyms [2]

Bontia daphnoides, commonly known as wild olive or white alling, [1] is the only species of the flowering plant genus Bontia in the family Scrophulariaceae. It is a shrub or small tree growing on many Caribbean islands both as a wild plant and cultivated in gardens.

Contents

Description

Bontia daphnoides is a shrub or small tree sometimes growing to a height of 5 metres (20 ft) with a trunk up to 15 centimetres (6 in) in diameter. The bark is light brown, thick and grooved. Its leaves are arranged alternately, mostly 62–108 millimetres (2–4 in) long, 14–22 millimetres (0.6–0.9 in) wide, elliptic in shape with a mid-vein visible on the lower surface. They are crowded on the ends of the branches and have many small oil glands. [1] [3]

The flowers are arranged singly in the axils of leaves on a stalk 15–20 millimetres (0.6–0.8 in) long. There are 5 egg-shaped, green pointed sepals which have hairy edges and the petals are joined at their bases to form a tube 15–20 millimetres (0.6–0.8 in) long. The tube has two lobes of different sizes and the lower one is rolled back and covered on its upper surface with a dense layer of purple hairs. The tube is yellowish-brown and covered with many raised oil glands on the outside. Flowers are present for most of the year and are followed by fruits which are roughly spherical with a small beak, pale yellow at first but drying to brown. [1] [3]

Bontia daphnoides leaves and fruits Bontia daphnoides (5819098688).jpg
Bontia daphnoides leaves and fruits

Taxonomy and naming

Bontia daphnoides was first formally described in 1753 by Carl Linnaeus and the description was published in Species Plantarum . [4] [5] The specific epithet (daphnoides) possibly refers to the similarity of this species to plants in the genus Daphne . [1] The species has many common names depending on the language spoken on the island where it is found. The name white alling is used in the Virgin Islands and wild olive in Barbados. Other names include olivier bord de mer (Martinique), mang blanc (Haiti), mangle (Puerto Rico) and aceituna americana (Cuba). [1] [3]

Molecular phylogenetic work suggests that Bontia daphnoides is deeply nested within the genus Eremophila, a large genus of plants entirely native to mainland Australia, with the majority of species found in the arid zone. [6]

Distribution and habitat

Bontia daphnoides occurs on most of the islands in the Caribbean and on the coasts of Venezuela and Guyana. [1] It is naturalised in Florida. [7] It grows it coastal areas, often near mangroves where it is often the dominant plant. [1]

Use in horticulture

White alling is grown as a hedge or as a feature plant, especially in areas exposed to salt spray and are common in places like the coasts of Guyana. There are also grown in the high Andes of Venezuela and often occur as garden escapees. [3]

Related Research Articles

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

Myoporum is a genus of flowering plants in the figwort family, Scrophulariaceae. There are 30 species in the genus, eighteen of which are endemic to Australia although others are endemic to Pacific Islands, including New Zealand, and one is endemic to two Indian Ocean islands. They are shrubs or small trees with leaves that are arranged alternately and have white, occasionally pink flowers and a fruit that is a drupe.

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

Eremophila is a genus of more than 270 species of plants in the figwort family, Scrophulariaceae all of which are endemic to mainland Australia.. Eremophilas are widespread in the arid areas of Australia, especially Western Australia and range in size from low-growing shrubs to small trees. The petals are joined, at least at their bases, into a tube with the upper petals different in size and shape from the lower ones. Some species have common names including emu bush, poverty bush or fuchsia bush, reflecting the belief that emus eat the fruit, their arid environment or a superficial resemblance to the flowers of plants in the genus Fuchsia.

<i>Eremophila maculata</i> Species of plant

Eremophila maculata, also known as spotted emu bush or spotted fuchsia-bush, is a plant in the figwort family Scrophulariaceae, and is endemic to Australia. It is the most widespread of its genus in nature and probably the most frequently cultivated Eremophila. It is a spreading, often densely branched shrub with variable leaf shape and flower colour, but the other features of the flowers such as the size and shape of the parts are consistent. The inside of the flower is often, but not always, spotted.

<i>Eremophila oppositifolia</i> Species of plant

Eremophila oppositifolia, commonly known as weeooka, twin-leaf emu bush and mountain sandalwood, is a plant in the figwort family, Scrophulariaceae, and is endemic to Australia. It is a shrub or small tree with its leaves arranged in opposite pairs and has cream to red or sometimes maroon coloured flowers. It occurs in all mainland states, but not the Northern Territory.

<i>Myoporum sandwicense</i> Species of tree

Myoporum sandwicense, commonly known as naio, bastard sandalwood or false sandalwood is a species of flowering plant in the figwort family, Scrophulariaceae. It is a tree or shrub highly variable in its form, the size and shape of its leaves, in the number of flowers in a group and in the shape of its fruit. It is endemic to Hawaiʻi.

<i>Myoporum insulare</i> Species of plant

Myoporum insulare, commonly known as common boobialla, native juniper, is a species of flowering plant in the figwort family Scrophulariaceae and is endemic to coastal areas of Australia. It is a shrub or small tree which grows on dunes and coastal cliffs, is very salt tolerant and widely used in horticulture.

Diocirea is a genus of flowering plants in the figwort family, Scrophulariaceae. The genus is endemic to a small area in the south-west of Western Australia and is intermediate in character between Eremophila and Myoporum. There are four members of the genus, all of which are small shrubs with stems and leaves which produce a resin making the plants appear bluish-green. Neither the genus, nor any of the species had been described before 2007 although a few specimens had been collected as Eremophila elachantha. Despite their limited distribution, they often occur in populations of several thousand individual plants, forming a dense ground cover.

<i>Myoporum petiolatum</i> Species of plant

Myoporum petiolatum, commonly known as sticky boobialla, is a plant in the figwort family Scrophulariaceae, and is endemic to the south-east of continental Australia. For many years this species has been confused with the much less common species Myoporum viscosum from which it can be distinguished by its thinner, noticeably petiolate and non-odorous leaves.

<i>Myoporum floribundum</i> Species of shrub

Myoporum floribundum, commonly known as weeping myoporum or slender myoporum, is a sour-smelling glabrous shrub in the family Scrophulariaceae endemic to a small area of New South Wales and Victoria in Australia. It has long, thin, drooping leaves and profuse white flowers in clusters along the stems in spring. Although it is uncommon in nature, it has long been available as a popular garden plant.

<i>Myoporum boninense</i> Species of shrub

Myoporum boninense is a plant in the figwort family, Scrophulariaceae. It is a shrub with thick, fleshy, glossy leaves, white flowers in small groups and shiny lilac to pale purple fruits. It grows in coastal heath in New South Wales and Queensland in Australia and on islands in the north west Pacific Ocean.

<i>Myoporum mauritianum</i> Species of flowering plant

Myoporum mauritianum is a flowering plant in the figwort family Scrophulariaceae and is endemic to a few volcanic islands in the Indian Ocean. It is a small, low-branched shrub with serrated leaves and small white flowers and usually grows on calcarenite within 20 metres (70 ft) of the sea.

Glycocystis beckeri is the only species of the flowering plant genus Glycocystis in the family Scrophulariaceae and is endemic to the south west of Western Australia. It is a shrub, similar to others in the genera Eremophila and Myoporum but is unusual in that it produces very large amounts of sticky, sweet-smelling resin produced by raised glands which cover the entire plant, except for the petals. It has been suggested that the resin traps insects which the plant uses as a source of nitrogen.

Diocirea acutifolia is a plant in the figwort family, Scrophulariaceae and is endemic to a small area near Norseman in Western Australia. The branches and leaves produce sticky resin which sometimes covers the whole plant making it appear bluish grey. This species is distinguished from the three others in the genus by its leaves which are longer than 6 millimetres (0.2 in) and the prominent resin glands on its stems.

<i>Diocirea microphylla</i> Species of flowering plant

Diocirea microphylla is a plant in the figwort family (Scrophulariaceae), and is endemic to a small area near Coolgardie in Western Australia. It is a low shrub with thin branches and minute leaves pressed against the stems. It is readily distinguished from the other three species in the genus by its tiny leaves.

Diocirea ternata is a plant in the figwort family, Scrophulariaceae and is endemic to a small area near Balladonia in Western Australia. It is a low shrub with a restricted distribution but which often occurs in large numbers, forming a dense ground cover. It is readily distinguished from the other three species in the genus by its unusual leaf arrangement.

Diocirea violacea is a plant in the figwort family (Scrophulariaceae), and is endemic to a small area near Salmon Gums in Western Australia. It is a low shrub with a restricted distribution but which often occurs in large numbers, forming a dense ground cover. It can be distinguished from the three others in its genus by a combination of the size and arrangement of its leaves and the appearance of its fruits.

<i>Eremophila alatisepala</i> Species of flowering plant

Eremophila alatisepala is a plant in the figwort family, Scrophulariaceae and is endemic to the south-west of Queensland in Australia. It is a very sticky shrub covered with many glandular hairs which produce a resin that often obscures the hairs that produce it. The plant is usually found in stony places on ridges and slopes in the Queensland Channel Country.

<i>Eremophila barbata</i> Species of plant

Eremophila barbata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to a small area in the Eyre Peninsula of South Australia. It is a very rare, small, spreading shrub distinguished by a prominent "beard" on the lower lobe of its lilac-coloured flowers.

<i>Eremophila linearis</i> Species of flowering plant

Eremophila linearis, commonly known as harlequin fuchsia bush, is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is a shrub with long leaves, sticky, shiny leaves and branches and bright red flowers

<i>Eremophila santalina</i> Species of flowering plant

Eremophila santalina is a flowering plant in the figwort family, Scrophulariaceae and is endemic to South Australia. It is an erect, glabrous shrub with thin branches, flexible leaves and white or cream-coloured flowers which sometimes have a slight pinkish-purple tinge.

References

  1. 1 2 3 4 5 6 7 8 Chinnock, R.J. (Bob) (2007). Eremophila and allied genera : a monograph of the plant family Myoporaceae (1st ed.). Dural, NSW: Rosenberg. pp. 162–164. ISBN   9781877058165.
  2. "Bontia daphnoides L.". The Plant List . Royal Botanic Gardens, Kew . Retrieved 4 November 2017. Note that this website has been superseded by World Flora Online
  3. 1 2 3 4 "Bontia daphnoides". Trees of the Virgin Islands. Archived from the original on 4 March 2016. Retrieved 5 December 2015.
  4. "Bontia daphnoides". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens . Retrieved 5 December 2015.
  5. Linnaeus, Carl (1753). Species Plantarum. Stockholm: Impensis Laurentii Salvii. p. 638. Retrieved 5 December 2015.
  6. Fowler, Rachael M.; Murphy, Daniel J.; McLay, Todd G.B.; Buirchell, Bevan J.; Chinnock, Robert J.; Bayly, Michael J. (June 2021). "Molecular phylogeny of tribe Myoporeae (Scrophulariaceae) using nuclear ribosomal DNA : Generic relationships and evidence for major clades". TAXON. 70 (3): 570–588. doi:10.1002/tax.12495. ISSN   0040-0262.
  7. Nelson, Gil (2011). The trees of Florida : a reference and field guide (2nd ed.). Sarasota, Fla.: Pineapple Press. p. 269. ISBN   9781561644742.