dcsimg

Description

provided by Flora of Zimbabwe
Epiphytic or lithophytic monopodial herbs. Leaves usually distichous, linear or ligulate, apex obtusely 2-lobed. Inflorescence axillary, 1-flowered. Flowers white, sweet-scented. Dorsal sepal usually recurved, lateral ± joined under the spur. Sepals and petals narrow. Lip entire; basal spur long. Column short with 2 parallel arms joined on the inner side to the lateral sepals and petals, giving these a characteristic twist; pollinia 2, each joined by a short stipes to a large viscidium.
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Mark Hyde, Bart Wursten and Petra Ballings
bibliographic citation
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Jumellea Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=439
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Mark Hyde
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Bart Wursten
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Petra Ballings
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Flora of Zimbabwe

Jumellea

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Jumellea alionae P.J.Cribb, herbarium sheet isotype

Jumellea is an orchid genus with 55 species native to Madagascar, the Comoros, the Mascarenes, and eastern Africa.[1] In horticulture, it is often abbreviated Jum.

Etymology

It is named after Henri Lucien Jumelle, a French botanist.[2]

Ecology

Pollination

Jumellea exhibits the typical adaptions to pollination by hawk moths. However, also auto-pollination is known to occur in Jumellea stenophylla.[3]

Phylogeny

Jumellea is proven to be monophyletic.[4]

Jumellea is the sister group to Aeranthes.[4][5][6] Both genera together are the sister group to Angraecum:[6][5]

Aeranthes Aeranthes arachnites (15043336316).jpg

Jumellea Jumellea comorensis Shatin Orchid Show, Hong Kong- (9229776220) - cropped.jpg

Angraecum Angraecum viguieri 8478B - cropped.jpg

Angraecum evolved into a separate lineage about 9.12 million years ago, and the genera Jumellea and Aeranthes separated about 9.55 million years ago. This means these genera date back to the Miocene.[6]

Taxonomy

Species

References

  1. ^ a b c d "Jumellea Schltr". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 9 January 2022.
  2. ^ Genaust, Helmut (1976). Etymologisches Wörterbuch der botanischen Pflanzennamen ISBN 3-7643-0755-2
  3. ^ Micheneau, C., Fournel, J., Gauvin-Bialecki, A., & Pailler, T. (2008). "Auto-pollination in a long-spurred endemic orchid (Jumellea stenophylla) on Reunion Island (Mascarene Archipelago, Indian Ocean)." Plant Systematics and Evolution, 272(1), 11-22.
  4. ^ a b Andriananjamanantsoa, H. N. (2016). "Systématique évolutive et biogéographie de Angraecum (Orchidaceae, Angraecinae) à Madagascar."
  5. ^ a b Perez-Lamarque, B., Maliet, O., Pichon, B., Selosse, M. A., Martos, F., & Morlon, H. (2022). "Do closely related species interact with similar partners? Testing for phylogenetic signal in bipartite interaction networks." Peer Community Journal, 2.
  6. ^ a b c Farminhão, J. N., Verlynde, S., Kaymak, E., Droissart, V., Simo-Droissart, M., Collobert, G., ... & Stévart, T. (2021). "Rapid radiation of angraecoids (Orchidaceae, Angraecinae) in tropical Africa characterised by multiple karyotypic shifts under major environmental instability." Molecular Phylogenetics and Evolution, 159, 107105.

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Jumellea: Brief Summary

provided by wikipedia EN
Jumellea alionae P.J.Cribb, herbarium sheet isotype

Jumellea is an orchid genus with 55 species native to Madagascar, the Comoros, the Mascarenes, and eastern Africa. In horticulture, it is often abbreviated Jum.

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