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Calypso bulbosa

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Calypso is a genus of orchids containing one species, Calypso bulbosa, known as the calypso orchid, fairy slipper or Venus's slipper. It is a perennial member of the orchid family found in undisturbed northern and montane forests. It has a small pink, purple, pinkish-purple, or red flower accented with a white lip, darker purple spottings, and yellow beard. The genus Calypso takes its name from the Greek signifying concealment, as they tend to favor sheltered areas on conifer forest floors. The specific epithet, bulbosa, refers to the bulb-like corms.[2]

Calypso bulbosa
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Epidendreae
Subtribe: Calypsoinae
Genus: Calypso
Salisb.
Species:
C. bulbosa
Binomial name
Calypso bulbosa
Synonyms[1]
  • Cypripedium bulbosum L.
  • Cymbidium boreale Sw.
  • Limodorum boreale (Sw.) Sw.
  • Calypso borealis (Sw.) Salisb.
  • Cytherea borealis (Sw.) Salisb.
  • Orchidium arcticum Sw.
  • Orchidium boreale (Sw.) Sw. in J.W.Palmstruch
  • Calypsodium boreale (Sw.) Link
  • Norna borealis (Sw.) Wahlenb.
  • Cytherea bulbosa (L.) House
  • Calypso bulbosa f. candida Hyl.

Description

Calypso bulbosa is a deciduous, perennial, perennial, herbaceous tuberous geophyte with a round, egg-shaped tuber as a perennial organ. It is encased in dead leaf sheaths and has elongated roots. Calypso orchids are typically 8 to 20 cm in height.[2] At the bottom there is only a single leaf, which is stalked up to about 7 cm long. The leaves are whole eliptical lanceolate to egg-shaped blade is up to 6 cm long and up to 5 cm wide.

Plant blooms with a purple-pink hermaphroditic, zygomorphic and threefold flower. The protruding petals and sepals are pink to purple in color, about 10 to 12 millimeters long and about 2 to 4 millimeters wide. The lip (labellum) is white to pink with pink or yellow spots. It has a wide, shoe-shaped cavity in the back and is about 15 to 25 millimeters long. A spur is absent. They do not bloom until May and June usually after snow melt. Each bulb live no more than five years.[2]

  •  
    Flowers
  •  
    Leaf Top
  •  
    Leaf underside
  •  
    White form of Calypso bulbosa var. occidentalis

Taxonomy & Systematics

The chromosomes count is 2n = 28. Since the orchid seed does not provide any nutrient tissue, germination only takes place when infected by a Mycorrhizal root fungus.

Taxonomy

The generic name Calypso Salisb, which is still valid today. was described in 1806 by the English gardener Richard Anthony Salisbury (1761-1829) in the work "Paradisus Londinensis", which Salisbury with the then director of the Royal Botanic Gardens in London, William Jackson Hooker (1785-1865), published. Carl von Linné originally assigned the Calypso bulbosa to the genus Cypripedium in 1753. But Calypso and Cypripedium belong to two different subfamilies in the botanical systematics.

The following generic names have been published as synonyms:

  • Cytherea Salisb. (1812)
  • Orchidium Sw. (1814)
  • Calypsodium Link (1829)
  • Norna Wahlenb. (1833)

The valid botanical species name of the Calypso orchid is: Calypso bulbosa (L.) Oakes 1842.

The Basionym Cypripedium bulbosum L. 1753 was described by Linné in "Species Plantarum".

The species names listed here are used as synonyms:

  • Cytherea bulbosa (L.) House (1905)
  • Cymbidium boreale Sw. (1799)
  • Limodorum boreale (Sw.) Sw. (1805)
  • Calypso borealis (Sw.) Salisb. (1806)
  • Cytherea borealis (Sw.) Salisb. (1812)
  • Orchidium arcticum Sw. (1814)
  • Orchidium boreale (Sw.) Sw. (1816)
  • Calypsodium boreale (Sw.) Link (1829)
  • Norna borealis (Sw.) Wahlenb. (1833)
  • Calypso occidentalis Holz. (1895)
  •  
    C. bulbosa in "Paradisus Londinensis"
  •  
    Calypso bulbosa Rchb. F. by Kränzlin, Friedrich; Müller, Walter in Abbildungen der in Deutschland und den angrenzenden gebieten vorkommenden grundformen der orchideenarten (1904)
  •  
    Illustration of Calypso bulbosa (as syn. Calypso borealis) in "Curtis's Botanical Magazine" vol.54 (N.S. 1) pl. 2763 (1827)
  •  
    Illustration of Calypso bulbosa as Cypripedium bulbosum by Johann Jacob Roemer in Flora Europaea inchoata (1797)
Varieties

Four natural varieties and one nothovariety (variety of hybrid origin but established in the wild) are recognized:[1]

Image Subspecies Distribution
  Calypso bulbosa var. americana (R.Br.) Luer most of Canada, western and northern United States
  Calypso bulbosa var. bulbosa Sweden, Finland, Baltic States, much of Russia, Mongolia, Korea
Calypso bulbosa nothovar. kostiukiae Catling Alberta (C. bulbosa var. americana × C. bulbosa var. occidentalis)
  Calypso bulbosa var. occidentalis (Holz.) Cockerell from Alaska and British Columbia south through the Cascades, Rockies, and Sierra Nevada to California
  Calypso bulbosa var. speciosa (Schltr.) Makino Japan, China (Gansu, Jilin, Nei Mongol, Sichuan, Tibet, Yunnan)[3]

Distribution & Ecology

 
Calypso bulbosa in Mendocino County, CA
 
Calypso bulbosa in Calypso bulbosa var, americana, in bloom, Winsor Trail, Santa Fe County, New Mexico.

This species' range is circumpolar,[4] and includes California, the Rocky Mountain states and most of the most northerly states of the United States; most of Canada; Scandinavia much of European and Asiatic Russia; China, Mongolia, Korea and Japan—see external links for map.[1][5] It is found in subarctic swamps and marshes as well as shady places subarctic coniferous forests.

Although the calypso orchid's distribution is wide, it is very susceptible to disturbance, and is therefore classified as threatened or endangered in several U. S. states and in Sweden and Finland. It does not transplant well[2] owing to its mycorrhizal dependence on specific soil fungi. The corms have been used as a food source by North American native peoples. The Thompson River Indians of British Columbia used it as a treatment for mild epilepsy.[6]

At least near Banff, Alberta, the calypso orchid is pollinated by bumble bees (Bombus (Pyrobombus) and B. Psithyrus). It relies on "pollination by deception", as it attracts insects to anther-like yellow hairs at the entrance to the pouch and forked nectary-like structures at the end of the pouch but produces no nectar that would nourish them. Insects quickly learn not to revisit it. Avoiding such recognition may account for some of the small variation in the flower's appearance.[5][7]

References

  1. ^ a b c Kew World Checklist of Selected Plant Families
  2. ^ a b c d Coleman, Ronald A. (2002), The Wild Orchids of Arizona and New Mexico, Nature, pp. 21–26, ISBN 0-8014-3950-7, retrieved 2009-06-27
  3. ^ Flora of China v 25 p 252, 布袋兰 bu dai lan, Calypso bulbosa var. speciosa
  4. ^ C.Michael Hogan, ed. 2010. Calypso bulbosa. Encyclopedia of Life.
  5. ^ a b Boyden, Thomas C. (1982), "The pollination biology of Calypso bulbosa var. Americana (Orchidaceae): Initial deception of bumblebee visitors", Oecologia, 55 (2): 178–184, Bibcode:1982Oecol..55..178B, doi:10.1007/bf00384485, PMID 28311231, S2CID 12587703
  6. ^ Moerman, Daniel E. (1998), Native American ethnobotany, Timber Press, p. 133, ISBN 0-88192-453-9
  7. ^ Mosquin, T. (1970), "The Reproductive Biology of Calypso bulbosa (Orchidaceae)", Can. Field-Nat. (84): 291–296 Summarized by Coleman and by Boyden
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