Alangium

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Alangium
Alangium platanifolium.jpg
Alangium platanifolium
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Cornales
Family: Cornaceae
Genus: Alangium
Lam.
Type species
Alangium salviifolium
Lamarck
Species

about 40 species. (See text)

Alangium salviifolium. Alangium salviifolium Engler.png
Alangium salviifolium.

Alangium is a small genus of flowering plants. The genus is included either in a broad view of the dogwood family Cornaceae, or as the sole member of its own family Alangiaceae. [1] Alangium has about 40 species, but some of the species boundaries are not entirely clear. [2] The type species for Alangium is Alangium decapetalum, which is now treated as a subspecies of Alangium salviifolium. [3] All of the species are shrubs or small trees, except the liana Alangium kwangsiense. [2] A. chinense, A. platanifolium, and A. salviifolium are known in cultivation. [4]

Contents

Fruits of alangium Fruits of alangium.jpg
Fruits of alangium

Range

The genus consists of small trees, shrubs and lianas, and is native to western Africa, Madagascar, southern and eastern Asia (China, Malaysia, Indonesia, and the Philippines), tropical Australia, the western Pacific Ocean islands, and New Caledonia. Most of the species are native to tropical and subtropical regions of east and southeast Asia. [2] Five of the species extend well outside of this area. Alangium platanifolium extends from east Asia into Russia. Alangium chinense (sensu lato) extends from southeast Asia to Africa. Alangium salviifolium is the most widespread species, ranging from Africa to Australia, Fiji, and New Caledonia. Alangium villosum occurs from southeast Asia to Australia and the western Pacific Islands. Alangium grisolleoides is endemic to Madagascar and gives the genus a disjunct distribution.

Alangium species are used as food plants by the larvae of some Lepidoptera species in the Geometroidea-Drepanoidea assemblage including engrailed (Geometridae) and the subfamily Cyclidiinae (Drepanidae).

Etymology

The name Alangium is a Latinization, derived from the Malayalam name alangi, which, in Kerala, refers to Alangium salviifolium. [5] It was named in 1783 by Jean-Baptiste Lamarck in his Encyclopédie Méthodique . [6] [7]

Paleontological record

The wood, fruit, and pollen of Alangium are distinctive. Fossils of Alangium have been recognized from the early Eocene of England and the middle Eocene of western North America. In former times, Alangium was far more widespread than it is today. [2]

Species

As of April 2014 The Plant List recognises 42 accepted species (including infraspecific names): [8]

Characteristics

Differences from the other genera in Cornaceae include articulated pedicels, subulate bracts, bitegmic seeds and the single-seeded fruit. The entire or lobed leaves are alternate. The bisexual (rarely unisexual) nectariferous flowers are arranged in axillary cymes. The flowers have 4-10 small sepals and 4-10 linear petals. There are 440 stamens distributed in a single cycle. The ovary is inferior and bilocular (sometimes unilocular). The fruit is drupe.

A detailed description of Alangium can be found at Flora of China (journal). [9] Detailed botanical illustrations are available for several species. [10]

Taxonomy

In 2011, a phylogenetic analysis of DNA sequences showed that Alangium is sister to Cornus . [1] Since 1939, Alangium has been divided into four sections: Conostigma, Rhytidandra, Marlea, and Alangium. Some authors have raised Marlea and Rhytidandra to generic rank. The intergeneric classification of Alangium will require a few changes. [2]

Traditional uses

One species, Alangium chinense (Chinese :八角枫; pinyin :bā jiǎo fēng), is considered one of the fifty fundamental herbs in traditional Chinese medicine.

Related Research Articles

<span class="mw-page-title-main">Cornales</span> Order of flowering plants

The Cornales are an order of flowering plants, early diverging among the asterids, containing about 600 species. Plants within the Cornales usually have four-parted flowers, drupaceous fruits, and inferior to half-inferior gynoecia topped with disc-shaped nectaries.

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

The Cornaceae are a cosmopolitan family of flowering plants in the order Cornales. The family contains approximately 85 species in two genera, Alangium and Cornus. They are mostly trees and shrubs, which may be deciduous or evergreen, although a few species are perennial herbs. Members of the family usually have opposite or alternate simple leaves, four- or five-parted flowers clustered in inflorescences or pseudanthia, and drupaceous fruits. The family is primarily distributed in northern temperate regions and tropical Asia. In northern temperate areas, Cornaceae are well known from the dogwoods Cornus.

<i>Paphiopedilum</i> Genus of orchids

Paphiopedilum, often called the Venus slipper, is a genus of the lady slipper orchid subfamily Cypripedioideae of the flowering plant family Orchidaceae. The genus comprises some 80 accepted taxa including several natural hybrids. The genus is native to Southeast Asia, the Indian Subcontinent, southern China, New Guinea and the Solomon and Bismarck Islands. The type species of this genus is Paphiopedilum insigne.

<i>Cornus</i> Genus of flowering plants in the dogwood family Cornaceae

Cornus is a genus of about 30–60 species of woody plants in the family Cornaceae, commonly known as dogwoods, which can generally be distinguished by their blossoms, berries, and distinctive bark. Most are deciduous trees or shrubs, but a few species are nearly herbaceous perennial subshrubs, and some species are evergreen. Several species have small heads of inconspicuous flowers surrounded by an involucre of large, typically white petal-like bracts, while others have more open clusters of petal-bearing flowers. The various species of dogwood are native throughout much of temperate and boreal Eurasia and North America, with China, Japan, and the southeastern United States being particularly rich in native species.

<span class="mw-page-title-main">Nyssaceae</span> Family of trees

Nyssaceae is a family of flowering trees sometimes included in the dogwood family (Cornaceae). Nyssaceae is composed of 37 known species in the following five genera:

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

Lycium is a genus of flowering plants in the nightshade family, Solanaceae. The genus has a disjunct distribution around the globe, with species occurring on most continents in temperate and subtropical regions. South America has the most species, followed by North America and southern Africa. There are several scattered across Europe and Asia, and one is native to Australia. Common English names for plants of this genus include box-thorn and desert-thorn.

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

Actephila is a genus of plants in the family Phyllanthaceae, first described as a genus in 1826. It is one of 8 genera in the tribe Poranthereae, and is most closely related to Leptopus. The name of the genus is derived from two Greek words, akte, "the seashore", and philos, "loving". It refers to a coastal habitat.

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

Anaphalis is a genus of herbaceous and woody flowering plants within the family Asteraceae, whose members are commonly known by the name pearl or pearly everlasting. There are around 110 species with the vast majority being native to central and southern Asia. There is one species native to North America that is fairly well known and popular in cultivation, namely the western pearly everlasting.

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

Clerodendrum is a genus of flowering plants formerly placed in the family Verbenaceae, but now considered to belong to the Lamiaceae (mint) family. Its common names include glorybower, bagflower and bleeding-heart. It is currently classified in the subfamily Ajugoideae, being one of several genera transferred from Verbenaceae to Lamiaceae in the 1990s, based on phylogenetic analysis of morphological and molecular data.

Alangium nobile is a tree in the dogwood family Cornaceae. The specific epithet nobile is from the Latin meaning "noble" or "distinguished", likely referring to the growth habit.

<i>Canthium</i> Genus of plants

Canthium is a genus of flowering plants in the family Rubiaceae. They are shrubs and small trees. The leaves are deciduous and the stems are usually thorny.

<i>Mastixia</i> Genus of trees

Mastixia is a genus of about 19 species of resinous evergreen trees, usually placed in the family Cornaceae. Its range extends from India through Southeast Asia and New Guinea to the Solomon Islands. Mastixia species have alternate or opposite simple broad leaves, many-flowered inflorescences, and blue to purple drupaceous fruits.

Urophyllum is a genus of flowering plant in the family Rubiaceae, native to from south China to Tropical Asia. The genus was established by Nathaniel Wallich in 1824.

<i>Alangium chinense</i> Species of flowering plant

Alangium chinense is a species of flowering plant in the Cornaceae family. It has the Chinese name.

Diplopanax is a genus of flowering trees placed in the family Cornaceae or Nyssaceae. Its two known extant species inhabit the wet tropical mountains of Vietnam and southern China. They are broad-leaved evergreen trees with woody fruits and white or yellow flowers.

<i>Ligustrum robustum</i> Species of shrub

Ligustrum robustum grows as a shrub or small tree up to 10 m (30 ft) tall though old specimens of more than a hundred years have been observed with a height of 15 m (50 ft). The fruit of the shrub is an ellipsoid berry, bluish-purple when fully ripe, 7–10 mm (0.28–0.39 in) × 4–5 mm (0.16–0.20 in).

<i>Grubbia</i> Genus of plants

Grubbia is a genus of flowering plants. It is the sole genus in the family Grubbiaceae. The genus has three species, all endemic to the Cape Floristic Region of South Africa. They are shrubs that grow to 1.5 m (4.9 ft) tall, with tiny flowers and slender, leathery leaves. The fruit is a syncarp.

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

Amischotolype is a genus of perennial monocotyledonous flowering plants in the Commelinaceae. It is found in Central Africa and from India through Southeast Asia to New Guinea, with the great majority or species found in Asia.

<i>Alangium salviifolium</i> Species of flowering plant

Alangium salviifolium, commonly known as sage-leaved alangium, is a flowering plant in the Cornaceae family. It is also commonly known as Ankolam in Malayalam, Ankola in Kannada, Akola or Ankol in Hindi and Alanji in Tamil. In India, Its mostly found in dry regions in plains and low hills and also found on roadsides.

Alangium villosum is a species of flowering plant in the family Cornaceae, native to Java.

References

  1. 1 2 Qiu-Yun (Jenny) Xiang, David T. Thomas, and Qiao Ping Xiang. 2011. "Resolving and dating the phylogeny of Cornales - Effects of taxon sampling, data partitions, and fossil calibrations". Molecular Phylogenetics and Evolution59(1):123-138. doi : 10.1016/j.ympev.2011.01.016
  2. 1 2 3 4 5 Chun-Miao Feng, Steven R. Manchester, and Qiu-Yun (Jenny) Xiang. 2009. "Phylogeny and biogeography of Alangiaceae (Cornales) inferred from DNA sequences, morphology, and fossils". Molecular Phylogenetics and Evolution51(2):201-214. doi : 10.1016/j.ympev.2009.01.017
  3. Alangium In: Index Nominum Genericorum. In: Regnum Vegetabile (see External links below).
  4. Anthony Huxley, Mark Griffiths, and Margot Levy (1992). The New Royal Horticultural Society Dictionary of Gardening. The Macmillan Press,Limited: London. The Stockton Press: New York. ISBN   978-0-333-47494-5 (set).
  5. Umberto Quattrocchi. 2000. CRC World Dictionary of Plant Names volume I. CRC Press: Boca Raton; New York; Washington,DC;, USA. London, UK. ISBN   978-0-8493-2675-2 (vol. I).
  6. Alangium At: International Plant Names Index. (See External links below).
  7. Jean-Baptiste Lamarck. 1783. Encyclopédie Méthodique: botanique. 1(1):174
  8. "Alangium". The Plant List . Retrieved 2 April 2014.
  9. Haining Qin and Chamlong Phengklai. 2007. Alangium pages 304-308. In: Wu Zhengyi, Peter H. Raven, and Hong Deyuan (editors). 1994 onward. Flora of China vol. 13: Clusiaceae - Araliaceae. Science Press: Beijing, China; and Missouri Botanical Garden Press: St. Louis, MO, USA. ISBN   978-1-930723-59-7(vol. 13) ISBN   978-0-915279-34-0 (set). (See External links below).
  10. Wu Zhengyi, Peter H. Raven, Hong Deyuan (editors), and Zhang Libing (illustrations editor). 2008. Flora of China Illustrations, vol. 13: Clusiaceae - Araliaceae: 328-333. Science Press: Beijing, China; and Missouri Botanical Garden Press: St. Louis, MO, USA. ISBN   978-1-930723-80-1.