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Trochetiopsis

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The flowering plant genus Trochetiopsis consists of two extant and one extinct species endemic to the island of Saint Helena (South Atlantic Ocean). They were formerly placed in the family Sterculiaceae, but this is included in the expanded Malvaceae in the APG and most subsequent systematics.

There is evidence from fossil pollen that the Trochetiopsis lineage has been on Saint Helena since the late Miocene (some 9.5 million years).[1]

Description

The species of this genus were formerly included in the genus Trochetia, but were separated by Marais in 1981 on the basis of geography and morphological characters.[2] Unlike in Trochetia, the Trochetiopsis flowers have only five stamens, and the sepals generally have appressed sericeous indumentum on their interior faces (although one species, T. melanoxylon, lacks this last character).

The wood of all the species is attractively coloured and is used in island inlay work.

Phylogeny

Trochetiopsis is closely related to the genera Melhania and Paramelhania, with a 2021 study subsuming Trochetiopsis and Paramelhania into Melhania.[3]

Species

There are three species (two living, one extinct), and one named hybrid:

See also

Footnotes

References

  • Marais, W. (1981) Trochetiopsis (Sterculiaceae), a new genus from St Helena. Kew Bulletin 36(3): 645–646. HTML abstract
  • Cronk, Q.C.B. (1995): The endemic Flora of St Helena. Anthony Nelson Ltd, Oswestry.
  • Cronk, Q.C.B. (1990): The history of the endemic flora of St Helena: late Miocene Trochetiopsis-like pollen from St Helena and the origin of Trochetiopsis. New Phytologist 114: 159–165.

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Trochetiopsis: Brief Summary

provided by wikipedia EN

The flowering plant genus Trochetiopsis consists of two extant and one extinct species endemic to the island of Saint Helena (South Atlantic Ocean). They were formerly placed in the family Sterculiaceae, but this is included in the expanded Malvaceae in the APG and most subsequent systematics.

There is evidence from fossil pollen that the Trochetiopsis lineage has been on Saint Helena since the late Miocene (some 9.5 million years).

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cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
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wikipedia EN

Trochetiopsis

provided by wikipedia FR

Trochetiopsis est un genre de plantes de la famille des Malvacées.

Liste des espèces

Selon [réf. nécessaire] :

Selon NCBI (28 janv. 2015)[1] :

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wikipedia FR

Trochetiopsis: Brief Summary

provided by wikipedia FR

Trochetiopsis est un genre de plantes de la famille des Malvacées.

license
fr
copyright
http://creativecommons.org/licenses/by-sa/3.0/
original
visit source
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wikipedia FR