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Eulophia

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Eulophia
Eulophia euglossa
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Cymbidieae
Subtribe: Eulophiinae
Genus: Eulophia
R. Br. nom. cons.[1]
Species

See List of Eulophia species

Synonyms[2]
List

Eulophia, commonly known as corduroy orchids,[3] is a genus of about two hundred species of flowering plants in the orchid family, Orchidaceae. Most Eulophia orchids are terrestrial but some are deciduous while others are evergreen. They either have an underground rhizome or pseudobulbs on the surface and those species with leaves have them on the end of a fleshy stem. The flowers are arranged on a thin flowering spike, the flowers having sepals which are larger than the petals. The genus is widely distributed but most species are found in Africa and Asia, usually growing in shady places with grass or shrubs in forests.

Description

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Orchids in the genus Eulophia are mostly terrestrial herbs with either an underground rhizome or pseudobulbs on the surface. The only two epiphytic species occur on Madagascar. Many species have no leaves, but when leaves are present they are long and narrow, sometimes pleated. The flowers are borne on a flowering stem which sometimes appears before the leaves with a few to many flowers. The flowers in some species are small but others have large, showy flowers in a wide range of colours. The sepals are usually larger than the petals but the labellum has three lobes and a spur or pouch at its base.[3][4][5][6][7]

Taxonomy and naming

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The genus Eulophia was first formally described by John Lindley in 1821 and the description was published in The Botanical Register. Because Robert Brown had previously used the name Eulophia in describing Lissochilus speciosus, and the name of that species was changed to Eulophia speciosa, Brown is the accepted author of the name. "Eulophia" is derived from the Ancient Greek words eu meaning "good", "well" or "true"[8]: 373  and lophos meaning "mane", "crest", "comb", "tuft" or "ridge",[8]: 238  possibly referring to the labellum callus of some species.[6]

Distribution and habitat

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Orchids in the genus Eulophia are distributed in shady rainforests or in open scrub or woodland in the tropics and subtropics of Africa, India, Asia, Queensland, and the Americas, although most are found in Africa. Many can survive the dry season through their large bulbous ‘corms’. Some species, such as Eulophia petersii, have adapted to very arid environments and are among the few orchids to have truly evolved desert living species.

Use in horticulture

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In the frost-free, semi-arid areas of Southern California, many Eulophia species, such as E. macra, E. petersii, E. plantaginea, and E. speciosa, can be grown outdoors year-round in well-drained pots with cactus/succulent potting mix (although E. speciosa prefers being grown in pure white sand), as long as they are given ample light through the winter and a drier winter resting period. Warmer growers, such as E. pulchra and possibly even the extremely rare and difficult E. cucullata (the foxglove orchid), can probably be grown outdoors in the warmer south areas of Florida and Hawaii, also. The generally large, underground, fleshy rhizome indicates a sympodial growth habit, and this makes Eulophias fairly easy to divide and propagate, provided the grower is gentle.

Species

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See List of Eulophia species

Hybrids

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Primary hybrids

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As of 9 Sept 2021, the following primary hybrids have been registered with the Royal Horticultural Society:

Intergeneric hybrids

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As off 9 Sept 2021, the following intergeneric hybrids made with Eulophia as the seed/pod (capsule-bearing) parent have been registered with the Royal Horticultural Society:

A further three intergeneric hybrids have been registered with Eulophia as the pollen parent:

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References

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  1. ^ "Eulophia". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. ^ Eulophia R.Br. Plants of the World Online. Retrieved 6 July 2024
  3. ^ Jump up to: a b Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 358. ISBN 1877069124.
  4. ^ "Eulophia R.Br. ex Lindl". African Orchids. Retrieved 26 October 2018.
  5. ^ "Eulophia". Pacific Bulb Society. Retrieved 26 October 2018.
  6. ^ Jump up to: a b D.L.Jones; T.Hopley; S.M.Duffy. "Factsheet - Eulophia". Australian Tropical Rainforest Orchids. Centre for Australian National Biodiversity Research (CANBR), Australian Government. Retrieved 27 May 2021.
  7. ^ Shrivastava, Rahul J. (2004). "Range extension of Eulophia flava (Lindl.) J.D.Hook. (Orchidaceae) in India". Selbyana. 25 (1): 23–26.
  8. ^ Jump up to: a b Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
  9. ^ "Eulophia 'Allan Abel'". Royal Horticultural Society. Retrieved 10 September 2021.
  10. ^ "Eulophia 'Douglas McMurtry'". Royal Horticultural Society. Retrieved 10 September 2021.
  11. ^ "Eulophia × flavopurpurea". Royal Horticultural Society. Retrieved 10 September 2021.
  12. ^ "Eulophia 'Jaco Truter'". Royal Horticultural Society. Retrieved 10 September 2021.
  13. ^ "Eulophia 'Jeannie Wolff'". Royal Horticultural Society. Retrieved 10 September 2021.
  14. ^ "Eulophia 'John Davison'". Royal Horticultural Society. Retrieved 10 September 2021.
  15. ^ "Eulophia 'Memoria Alexis Pardo'". Royal Horticultural Society. Retrieved 10 September 2021.
  16. ^ "Eulophia 'Michael Tibbs'". Royal Horticultural Society. Retrieved 10 September 2021.
  17. ^ "Eulophia 'Olive Delight'". Royal Horticultural Society. Retrieved 10 September 2021.
  18. ^ "Eulophia × pholelana". Royal Horticultural Society. Retrieved 10 September 2021.
  19. ^ "Eulophia 'Shamara'". Royal Horticultural Society. Retrieved 10 September 2021.
  20. ^ "Cymbidilophia 'Jumbo Kehong'". Royal Horticultural Society. Retrieved 10 September 2021.
  21. ^ "Euclades 'Indianapolis'". Royal Horticultural Society. Retrieved 10 September 2021.
  22. ^ "Eulobidium 'Rakthai'". Royal Horticultural Society. Retrieved 10 September 2021.
  23. ^ "Eulobidium 'Jumbo Gram'". Royal Horticultural Society. Retrieved 10 September 2021.
  24. ^ "Eulomangis Jumbo Keith'". Royal Horticultural Society. Retrieved 10 September 2021.
  25. ^ "Eulomangis 'Jumbo Pete'". Royal Horticultural Society. Retrieved 10 September 2021.
  26. ^ "Eulophyllum 'Jumbo Keith'". Royal Horticultural Society. Retrieved 10 September 2021.
  27. ^ "Eulophyllum 'Jumbo Nilotica'". Royal Horticultural Society. Retrieved 10 September 2021.
  28. ^ "Eulophyllum 'Jumbo Keith'". Royal Horticultural Society. Retrieved 10 September 2021.
  29. ^ "Eulophyllum 'SAJVOL Germinator'". Royal Horticultural Society. Retrieved 10 September 2021.
  30. ^ "Euclades 'Saint Léger'". Royal Horticultural Society. Retrieved 10 September 2021.
  31. ^ "Eulophyllum 'Jumbo Amos'". Royal Horticultural Society. Retrieved 10 September 2021.
  32. ^ "Gramcymbiphia 'Jumbo Lovely'". Royal Horticultural Society. Retrieved 10 September 2021.
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