Eligmocarpus

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Eligmocarpus
Eligmocarpus cynometroides Capuron Typus MNHN-P-P00100443.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Dialioideae
Genus: Eligmocarpus
Capuron (1968)
Species:
E. cynometroides
Binomial name
Eligmocarpus cynometroides
Capuron (1968)

Eligmocarpus is a genus of flowering plants in the family Fabaceae. It belongs to subfamily Dialioideae. [2] It contains a single species, Eligmocarpus cynometroides. It is a tree endemic to southeastern Madagascar. [3] Currently, it occurs only on the edge of a relatively humid spiny forest in Petriky. The species is critically endangered, with only 21 adult trees remaining as of 2012, down from 23 in 2004 and 27 in 2001. The surviving trees do have high genetic diversity. The trees' wood is used as timber by local communities, which has contributed heavily to the species' decline. Prior to human colonization, the species had used streams and rivers to carry its seeds into new biomes, in dry or spiny forests on limestone or sandy soils in humid to subarid climates. The species likely originated in the Andohahela area, which is upstream of all remaining members of the species. The species has a very low rate of seed production (about 1 seed/kg of fruit) and its seed germination is limited (<5% if not treated with an increase to 43% when soaked in cold water for 48 hours). [4]

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<span class="mw-page-title-main">Detarioideae</span> Subfamily of legumes

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<span class="mw-page-title-main">Flora of Madagascar</span> Plants endemic to Madagascar

The flora of Madagascar consists of more than 12,000 species of plants, as well as a poorly known number of fungi and algae. Around 83% of Madagascar's vascular plants are found only on the island. These endemics include five plant families, 85% of the over 900 orchid species, around 200 species of palms, and such emblematic species as the traveller's tree, six species of baobab and the Madagascar periwinkle. The high degree of endemism is due to Madagascar's long isolation following its separation from the African and Indian landmasses in the Mesozoic, 150–160 and 84–91 million years ago, respectively. However, few plant lineages remain from the ancient Gondwanan flora; most extant plant groups immigrated via across-ocean dispersal well after continental break-up.

Schizolaena hystrix is a tree in the family Sarcolaenaceae. It is endemic to Madagascar. The specific epithet hystrix is from the Latin meaning "spiny", referring to the porcupine-like appearance of the involucre.

<span class="mw-page-title-main">Dialioideae</span> Subfamily of legumes

The subfamily Dialioideae is one of the subdivisions of the plant family Fabaceae (legumes). This subfamily includes many tropical trees and shrubs. The subfamily consists of 17 genera, which are widespread throughout the tropics. It has the following clade-based definition:

The most inclusive crown clade containing Poeppigia proceraC.Presland Dialium guianense(Aubl.) Sandwith, but not Cercis canadensisL., Duparquetia orchidaceaBaill., or Bobgunnia fistuloides(Harms) J. H. Kirkbr. & Wiersema

References

  1. Buerki, S.; Devey, D. (2013). "Eligmocarpus cynometroides". IUCN Red List of Threatened Species . 2013: e.T21564953A21564955. doi: 10.2305/IUCN.UK.2013-2.RLTS.T21564953A21564955.en . Retrieved 13 November 2022.
  2. The Legume Phylogeny Working Group (LPWG). (2017). "A new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogeny". Taxon . 66 (1): 44–77. doi: 10.12705/661.3 . hdl: 10568/90658 .
  3. Eligmocarpus cynometroides Capuron. Plants of the World Online . Retrieved 21 August 2023.
  4. Devey, Dion S. (2013). "A snapshot of extinction in action: The decline and imminent demise of the endemic Eligmocarpus Capuron (Caesalpinioideae, Leguminosae) serves as an example of the fragility of Madagascan ecosystems". South African Journal of Botany. 89: 273–280. Retrieved 26 March 2024.