Stanhopea

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Genus of orchids

title: "Stanhopea" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["stanhopea", "stanhopeinae-genera", "epiphytic-orchids"] description: "Genus of orchids" topic_path: "general/stanhopea" source: "https://en.wikipedia.org/wiki/Stanhopea" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Genus of orchids ::

| image = Stanhopea insignis Orchi 001.jpg | image_caption = Stanhopea insignis | display_parents = 3 | taxon = Stanhopea | authority = J. Frost ex Hook. 1829 | type_species = Stanhopea insignis | type_species_authority = J.Frost ex Hook. | synonyms_ref = | synonyms =

  • Ceratochilus Lindl. ex G.Lodd 1829, illegitimate homonym not Blume 1825
  • Stanhopeastrum Rchb.f.
  • Gerlachia Szlach.
  • Tadeastrum Szlach.

Stanhopea is a genus of the orchid family (Orchidaceae) from Central and South America. The abbreviation used in horticultural trade is Stan. The genus is named for Philip Henry Stanhope, 4th Earl Stanhope (1781–1855), who was the president of the Medico-Botanical Society of London in 1829–1837. It comprises 55 species and 5 natural hybrids. The orchids in the genus are mostly epiphytic (growing on other plants), but occasionally terrestrial. They can be found in damp forests from Mexico to Trinidad to northwestern Argentina. Their ovate pseudobulbs carry from the top one long, plicate, elliptic leaf.

Stanhopea is noted for its complex and usually fragrant flowers that are generally spectacular and short-lived. Their pendant inflorescences are noted for flowering out of the bottom of the containers in which they grow, lending themselves to culture in baskets that have enough open space for the inflorescence to push through. They are sometimes called upside-down orchids.

The majority of species are robust plants that grow readily in cultivation. For relatives of Stanhopea see Stanhopeinae and the closely related sister subtribe Coeliopsidinae.

Description

Most Stanhopea flowers flash prominent, elegant horns on the epichile. The exception are the species; S. annulata, S. avicula, S. cirrhata, S. ecornuta and S. pulla. A second group have short or truncated horns, they include the species; S. candida, S. grandiflora, S. reichenbachiana, S. tricornis and the natural hybrid S. x herrenhusana. The structure of the labellum of this group is in general, not as complex as other members of the genus.

With most Stanhopea flowers lasting three days or less, the flowers must attract pollinators very quickly. These chemical attractants are generated in the hypochile, attracting the male euglossine bees to the flower. These male euglossine bees are known to be important pollinators of Stanhopea flowers, collecting fragrances at these flowers over their lifetime and storing them in their hind tibia. Bees in the Euglossini tribe, including Eulaema meriana, are known to pollinate these flowers supposedly because the orchids can deceptively mimic the form of a female and her sex pheromone. When the bee touches down on the flower, a great effort is made to collect chemical scent - he eventually slides on the waxy surface of the hypochile, gliding down on the slippery lip to exit the flower. The long column is touched in the process, resulting in the bee taking up pollinia at the very tip of the column. When the bee slides down another flower, the pollinia are deposited on the sticky surface of the stigma.

Species

::figure[src="https://upload.wikimedia.org/wikipedia/commons/5/5f/Stanhopea_tigrina.jpg" caption="''Stanhopea tigrina''"] ::

::figure[src="https://upload.wikimedia.org/wikipedia/commons/e/e1/Stanhopea-grandiflora.jpg" caption="''Stanhopea oculata''"] ::

::figure[src="https://upload.wikimedia.org/wikipedia/commons/8/82/Stanhopea.graveolens.web.jpg" caption="''Stanhopea ruckeri''"] ::

Natural hybrids

Intergeneric hybrids

  • × Aciopea (Acineta × Stanhopea). Aciopea Guillermo Gaviria (Acineta erythroxantha × Stanhopea wardii) was registered Nov-Dec 2004 by Guillermo Gaviria-Correa (Colombia).
    • × Aciopea is abbreviated Aip.
  • × Cirrhopea (Cirrhaea × Stanhopea)
  • × Coryhopea (Coryanthes × Stanhopea)
  • × Stangora (Gongora × Stanhopea)
  • × Stanhocycnis (Polycycnis × Stanhopea)

Gallery

Species

Image:Stanhopea anfracta Orchi 001.jpg|Stanhopea anfracta Image:Stanhopea annulata Orchi 001.jpg|Stanhopea annulata Image:Stanhopea candida Orchi 001.jpg|Stanhopea candida Image:Stanhopea cirrhata Orchi 001.jpg|Stanhopea cirrhata Image:Stanhopea connata Orchi 001.jpg|Stanhopea connata Image:Stanhopea costaricensis - Curtis 146 (ser, 4 no. 16) pl. 8830 (1920).jpg|Stanhopea costaricensis Image:Stanhopea ecornuta Orchi 001.jpg|Stanhopea ecornuta Image:Stanhopea embreei Orchi 001.jpg|Stanhopea embreei Image:Stanhopea grandiflora - fl 2.jpg|Stanhopea grandiflora

Natural hybrids

Image:Stanhopea x horichiana Orchi 01.jpg|Stanhopea × horichiana

References

  • Gerlach, G. & Beeche, J. 2004: Stanhopeinae Mesoamericanae III (Orchidaceae). Reestablecimiento de Stanhopea ruckeri y una especie nueva: Stanhopea confusa. Lankesteriana 4(3): 213–222.
  • Gerlach, G. 2010: Stanhopeinae Mesoamericanae V: El aroma floral de las Stanhopeas de Mexico. Lankesteriana 9(3): 431–442.
  • Rudolf Jenny (December 1993) "The Genus Stanhopea," in: Orchids 62(12):1270-1277
  • Rudolf Jenny (December 2003) "The Genus Stanhopea. Part 1: S. anfracta to S. napoensis," in: Caesiana no. 21, Supplement. 200 color photos, 160 p.
  • Jenny, R. (2004) "The genus Stanhopea: 2nd part, S. nigripes to S. xytriophora" Caesiana no. 22: 146–291.
  • (in German)

References

  1. Pridgeon, A.M., Cribb, P.J., Chase, M.C. & Rasmussen, F.N. (2009). Epidendroideae (Part two). Genera Orchidacearum 5: 1–585. Oxford University Press, New York, Oxford.
  2. [http://apps.kew.org/wcsp/namedetail.do?name_id=196061 Kew World Checklist of Selected Plant Families]
  3. Forzza, R. C. 2010. Lista de espécies Flora do Brasil http://floradobrasil.jbrj.gov.br/2010. Jardim Botânico do Rio de Janeiro, Rio de Janeiro
  4. (1995). "Native Orchids of Belize". Routledge.
  5. Idárraga-Piedrahita, A., R. D. C. Ortiz, R. Callejas Posada & M. Merello. (eds.) 2011. Flora de Antioquia: Catálogo de las Plantas Vasculares 2: 9–939. Universidad de Antioquia, Medellín.
  6. (2003-01-01). "Odor Compound Detection in Male Euglossine Bees". Journal of Chemical Ecology.
  7. "Search term=Stanhopea". the Royal Botanic Gardens, Kew.

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