Van-royena

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Van-royena
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Sapotaceae
Subfamily: Chrysophylloideae
Genus: Van-royena
Aubrév.
Species:
V. castanosperma
Binomial name
Van-royena castanosperma
Synonyms [1]
  • Vanroyena alternate spelling
  • Chrysophyllum castanospermumC.T.White
  • Lucuma castanosperma(C.T.White) C.T.White & W.D.Francis
  • Pouteria castanosperma(C.T.White) Baehni

Van-royena is a genus of the plant family Sapotaceae described as a genus in 1963. [2] [3]

Contents

There is only one known species, Van-royena castanosperma, which is endemic to the Cook region in northern Queensland. [1] [4] It grows at elevations of 0–1,200 metres (0–3,937 ft) above sea level, [5] in rainforests. [6]

Description

It is a tree that can grow up to 30 m (98 ft) tall, [6] with a stem that's bark exudates (fluid emitted by an organism through pores or a wound) quite conspicuous. The narrow, yellowish, vertical stripes in the blaze shaded bark layer is thin, about 2-3 mm. [5] It has simple leaves, that are 40–110 mm (2–4 in) long and 15–50 mm (1–2 in) wide. [6] [5] The petioles (leaf stalks) and twigs produce a milky exudate. [5] It has a corolla (the collective term for the petals) is about 7–12 mm (0.28–0.47 in) long, usually glabrous (lacking surface ornamentation) on both surfaces but the margins of the lobes are minutely ciliate (has small hairs). The stamens are attached well below the throat of the flower tube. The staminodes (sterile stamen) are subulate, about 2 mm (0 in) long. The ovary is about 1.5–2.5 mm (0–0 in) in diam., densely ferruginously (ruddy or rust-colored) and villous (covered with long, soft, straight hairs). The style is about 7.5–11 mm (0–0 in) long. [5] Between October and February, [6] it produces ovoid shaped fruit (or seed capsules), [5] which are 40–72 mm (2–3 in) long and 30–40 mm (1–2 in) wide. [6] [5] It has 1-3 seeds per fruit, which are 25–40 mm (1–2 in) long and 25–30 mm (1–1 in) wide. [6] [5] The testa (seed coat) is thick, hard and woody. The hilum (scar on a seed coat where it separates from its stalk) is 15–35 mm (1–1 in) long and 12 mm (0 in) wide. [5]

Taxonomy

It has several common names including; milky plum, yellow plum, saffron boxwood and poison plum. [6] [7]

Under the Nature Conservation Act 1992 (NCA) of Australia, its status is least concern. [7]

The genus name of Van-royena is in honour of Pieter van Royen (1923–2002), a Dutch botanist. He was an author of many papers on the flora of New Guinea. [8] The Latin specific epithet of castanosperma refers to the evergreen tree of Castanospermum (in the family Fabaceae), also from Queensland.

Both the genus and the species were first described and published in Adansonia, n.s., Vol.3 on page 329 in 1963. [4]

The genus is recognized by the United States Department of Agriculture and the Agricultural Research Service, but they do not list any known species. [9]

Related Research Articles

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Adansonia is a genus made up of eight species of medium-to-large deciduous trees known as baobabs. They are placed in the Malvaceae family, subfamily Bombacoideae. They are native to Madagascar, mainland Africa, and Australia. The trees have also been introduced to other regions such as Asia. The generic name honours Michel Adanson, the French naturalist and explorer who described Adansonia digitata. The baobab is also known as the "upside down tree", a name that originates from several myths. They are among the most long-lived of vascular plants and have large flowers that are reproductive for a maximum of 15 hours. The flowers open around dusk, opening so quickly that movement can be detected by the naked eye, and are faded by the next morning. The fruits are large, oval to round and berry-like and hold kidney-shaped seeds in a dry, pulpy matrix.

<span class="mw-page-title-main">Sapotaceae</span> Family of flowering plants

The Sapotaceae are a family of flowering plants belonging to the order Ericales. The family includes about 800 species of evergreen trees and shrubs in around 65 genera. Their distribution is pantropical.

<i>Pachypodium brevicaule</i> Species of flowering plant

Pachypodium brevicaule is a species of plant that belongs to the family Apocynaceae.

<i>Pouteria lucuma</i> Species of plant

Pouteria lucuma is a species of tree in the family Sapotaceae, cultivated for its fruit, the lúcuma. It is native to the Andean valleys of Bolivia, Chile, Ecuador, and Peru.

<i>Pleiogynium timoriense</i> Species of tree in the family Anacardiaceae

Pleiogynium timoriense, commonly known as the Burdekin plum, sweet plum, tulip plum, or in the Djabugay language guybalum is a medium-sized fruit-bearing tree in the family Anacardiaceae native to Malesia, Australia and the Pacific Islands.

<i>Adansonia grandidieri</i> Species of tree

Adansonia grandidieri is the biggest and most famous of Madagascar's six species of baobabs. It is sometimes known as Grandidier's baobab or the giant baobab. In French it is called Baobab malgache. The local name is renala or reniala. This tree is endemic to the island of Madagascar, where it is an endangered species threatened by the encroachment of agricultural land. This is the tree found at the Avenue of the Baobabs.

<i>Adansonia perrieri</i> Species of flowering plant

Adansonia perrieri, or Perrier's baobab, is a critically endangered species of deciduous tree, in the genus Adansonia. This species is endemic to northern Madagascar. It has been documented in only 10 locations, including Ankarana, Ampasindava, Loky Manambato and Montagne d'Ambre protected areas. Most populations, however, are outside of protected areas. Each location has few individuals. With an estimated population of fewer than 250 mature individuals and ongoing habitat decline due to fire and cutting for charcoal and timber or clearing for mining, this species has been assessed by IUCN as Critically Endangered. There are three species of baobab found in northern Madagascar, all sharing the common name "bozy".

<i>Adansonia za</i> Species of flowering plant

Adansonia za is a species of baobab in the genus Adansonia of the family Malvaceae. It was originally named in French as anadzahé. Common names in Malagasy include bojy, boringy, bozy, bozybe, ringy, and za, the last of which gives the plant its specific epithet. Eight Adansonia species are recognized, with six endemic to Madagascar. Adansonia za is the most widespread of the Madagascar endemics.

<i>Pouteria australis</i> Species of tree

Pouteria australis, also known by the synonym Planchonella australis, is a medium to tall rainforest tree of the family Sapotaceae native to Queensland and New South Wales, Australia. It is known by the common name black apple, wild plum, yellow buttonwood, black plum and yellow bulletwood.

<i>Melicope elleryana</i> Species of shrub

Melicope elleryana, commonly known as pink flowered doughwood, pink evodia, corkwood, or saruwa, is a species of rainforest shrub or tree in the family Rutaceae, and is native to New Guinea, parts of eastern Indonesia, the Solomon Islands and northern Australia. It has trifoliate leaves and pink to white, bisexual flowers arranged in panicles in leaf axils.

<i>Ochrosia moorei</i> Species of tree

Ochrosia moorei, known as the southern ochrosia is a rainforest plant of eastern Australia. Endangered by extinction, it has a ROTAP rating of 2ECi.

<i>Planchonella queenslandica</i> Species of tree

Planchonella queenslandica, the blush condoo, is a large rainforest tree of the family Sapotaceae native to eastern Australia. It is found in sea side rainforest as well as the drier inland rainforests. From as far south as the Richmond River, New South Wales to Coen in tropical Queensland, and as far west as Melville Island, Northern Territory.

<i>Pouteria eerwah</i> Species of tree

Pouteria eerwah is a rare species of Australian rainforest tree in the family Sapotaceae. Common names include shiny-leaved condoo, black plum and wild apple. It is endemic to south eastern Queensland, with a restricted distribution and regarded as endangered. There is discussion whether this plant should remain named as Planchonella eerwah.

Planchonella povilana is a species of plant in the family Sapotaceae. It is endemic to New Caledonia. As with other species in the same genus, it possesses stamens that are located below the tube orifice; a multi-seeded fruit, as well as foliaceous cotyledons embedded in endosperm.

Planchonella mandjeliana is a species of plant in the family Sapotaceae. It is endemic to New Caledonia. As with other species in the same genus, it possesses stamens that are located below the tube orifice; a multi-seeded fruit, as well as foliaceous cotyledons embedded in endosperm.

Planchonella luteocostata is a species of plant in the family Sapotaceae. It is endemic to New Caledonia. As with other plants in the same genus, it possesses stamens that are located below the tube orifice; a multi-seeded fruit, as well as foliaceous cotyledons embedded in endosperm.

Planchonella latihila is a species of plant in the family Sapotaceae. It is endemic to New Caledonia. As with other plants in the same genus, it possesses stamens that are located below the tube orifice; a multi-seeded fruit, as well as foliaceous cotyledons embedded in endosperm.

Planchonella crenata is a species of plant in the family Sapotaceae. It is endemic to New Caledonia. As with other species in the same genus, it possesses stamens that are located below the tube orifice; a multi-seeded fruit, as well as foliaceous cotyledons embedded in endosperm.

<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.

<i>Palaquium galactoxylum</i> Species of tree in the family Sapotaceae

Palaquium galactoxylum, commonly known as Cairns pencil cedar, Daintree maple or red silkwood, is a species of very large tree in the family Sapotaceae which is endemic to rainforests of New Guinea and northern Australia. It can produce spectacularly large buttress roots.

References

  1. 1 2 Kew World Checklist of Selected Plant Families
  2. Aubréville, André. 1963. Adansonia: recueil périodique d'observations botanique, n.s. 3: 329
  3. Tropicos, Van-royena Aubrév.
  4. 1 2 "Van-royena Aubrév. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 3 January 2022.
  5. 1 2 3 4 5 6 7 8 9 "Vanroyena castanosperma". apps.lucidcentral.org. Retrieved 3 January 2022.
  6. 1 2 3 4 5 6 7 William Cooper and Wendy Cooper Australian Rainforest Fruits: A Field Guide (2013) , p. 28, at Google Books
  7. 1 2 "Species profile—Van-royena castanosperma". apps.des.qld.gov.au. 20 October 2014. Retrieved 3 January 2022.
  8. Burkhardt, Lotte (2018). Verzeichnis eponymischer Pflanzennamen – Erweiterte Edition [Index of Eponymic Plant Names – Extended Edition](pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2018. ISBN   978-3-946292-26-5. S2CID   187926901 . Retrieved 1 January 2021.
  9. "Genus Van-royena Aubrév". npgsweb.ars-grin.gov. Retrieved 4 January 2022.

Other sources