Leptochiton (plant)

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Leptochiton
Temporal range: 24.46 –0  Ma
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S
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C
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Pg
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Late Oligocene – Recent [1]
Leptochiton quitoensis 6397 Ismene tenuifolia.jpg
Leptochiton quitoensis [2]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Amaryllidoideae
Tribe: Hymenocallideae
Genus: Leptochiton
Sealy
Type species
Leptochiton quitoensis
Ecuador-Peru Locator.svg
Leptochiton is native to Ecuador and Peru [3]

Leptochiton is a genus of South American plants in the Amaryllis family. [4] [5]

Contents

There are 2 known species, native to Ecuador and Peru: [6]

Description

Leptochiton quitoensis (Herb.) Sealy bulb with scale bar (3 cm) Leptochiton quitoensis (Herb.) Sealy.jpg
Leptochiton quitoensis (Herb.) Sealy bulb with scale bar (3 cm)

Generative characteristics

Leptochiton has phytomelanous seeds, which is unique among the tribe Hymenocallideae. [7]

Cytology

The diploid chromosome count is 2n = 24 or 2n = 34. [7]

Phylogeny

It is closely related to Ismene , to which it shared a common ancestor 26.14 million years ago. It is the sister group to Hymenocallis , from which it separated 24.46 million years ago. [1]

Hymenocallideae

Hymenocallis Cahaba Lily.jpg

Leptochiton Leptochiton quitoensis 6397 Ismene tenuifolia.jpg

Ismene Ismene RH (4).jpg

Related Research Articles

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

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<span class="mw-page-title-main">Amaryllidoideae</span> Subfamily of flowering plants

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<span class="mw-page-title-main">Galantheae</span> Tribe of flowering plants

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<span class="mw-page-title-main">Eustephieae</span> Tribe of flowering plants

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<span class="mw-page-title-main">Clinantheae</span> Tribe of flowering plants

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<span class="mw-page-title-main">Hymenocallideae</span> Tribe of flowering plants

Hymenocallideae is a tribe, where it forms part of the Andean clade, one of two American clades. The tribe was originally recognised by both Meerow (1995) and the Muller-Doblies' (1996). Its phylogenetic position within the Amaryllidoideae was established by Meerow et al. in 2000, while in-depth infratribal relationships were established in 2002.

Clinanthus elwesii is a species of plant in the family Amaryllidaceae. It is native to Peru. John Gilbert Baker, the English botanist who first formally described the species using the synonymous name Callithauma viridiflorum var. elwesii, named it in after Henry John Elwes, another English botanist who grew the specimen Baker examined.

<i>Stenomesson leucanthum</i> Species of plant

Stenomesson leucanthum is a species of flowering plant in the family Amaryllidaceae. It is native to Peru. Pierfelice Ravenna, the Chilean botanists who first formally described the species, using the basionym Pucara leucantha, named it after its white flowers.

<i>Pamianthe peruviana</i> Species of flowering plant

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References

  1. 1 2 Meerow, A. W., Gardner, E. M., & Nakamura, K. (2020). "Phylogenomics of the Andean tetraploid clade of the American Amaryllidaceae (subfamily Amaryllidoideae): unlocking a polyploid generic radiation abetted by continental geodynamics." Frontiers in Plant Science, 11, 582422.
  2. illustration from Baker, John Gilbert. 1878. Curtis's Botanical Magazine 104: plate 6397, as Ismene tenuifolia
  3. "Leptochiton Sealy". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 30 July 2023.
  4. Sealy, Joseph Robert. 1937. Botanical Magazine 160: plate 9491
  5. Jørgensen, P. M., M. H. Nee & S. G. Beck. (eds.) 2014. Catálogo de las plantas vasculares de Bolivia, Monographs in systematic botany from the Missouri Botanical Garden 127(1–2): i–viii, 1–1744.
  6. Kew World Checklist of Selected Plant Families
  7. 1 2 Meerow, A. W., Guy, C. L., Li, Q. B., & Yang, S. L. (2000). "Phylogeny of the American Amaryllidaceae based on nrDNA ITS sequences." Systematic Botany, 708-726.