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Orchid Cypripedium
 

Orchid Cypripedium


Part Number: ORC-0101-4801
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Cypripedium

From Wikipedia, the free encyclopedia

Cypripedium is a genus of 47 species of hardy, lady's-slipper orchids native to temperate and colder regions of the Northern Hemisphere.

Some grow in the tundra in Alaska and Siberia, which is an unusually cold habitat for orchids. They can withstand extreme cold, growing under the snow and blooming when the snow melts. But, in the wild, most have become rare and close to extinction, due to an ever shrinking natural habitat and overcollection. In the late 20th century, only a single plant of Cypripedium calceolus survived in Britain.

Common names include slipper orchid, lady's slipper, mocassin flower, camel's foot, squirrel foot, steeple cap, Venus' shoes and whippoorwill shoe. An abbreviation used in trade journals is 'Cyp'.

The genus has a long history of use, dating back 2,500 years to the Far East, where they were used medicinally. Several orchid species thought to be extinct in the United Kingdom including one native species in this genus have been found in habitat and are currently the subject of aggressive conservation efforts to protect and restore these showy plants to their native ranges.


Characteristics

As with most terrestrial orchids, the rhizome is short and robust, growing in the uppermost soil layer. The rhizome grows annually with a growth bud at one end and dies off at the other end. The stem grows from the bud at the tip of the rhizome. Most slipper orchids have an elongate erect stem, with leaves growing along its length. But the Mocassin Flower (Cypripedium acaule) has a short underground stem with leaves springing from the soil. The often hairy leaves can vary from ovate to elliptic or lanceolate, folded along their length. The stems lack pseudobulbs.

The inflorescence is racemose. It can carry one to twelve flowers, as in Cypripedium californicum. But most species have one to three flowers. There are three sepals, with, in most species, the two lateral ones more or less fused. The flower has three acute petals with the third a striking slipper-shaped lip, which is lowermost. The sepals and the petals are usually similarly colored, with the lip in a different color. But variations on this theme occur. The aspect of the lip of different species can vary a great deal. As with all orchids, it is specially constructed to attract pollinators. The flowers show a column with a unique shieldlike staminode. The ovary is 3-locular (with three chambers).


Synonymy

The following genera have been brought into synonymy with Cypripedium:

Arietinum Beck
Calceolaria Heist. ex Fabr., not to be confused with Calceolaria L.
Calceolus Mill.
Ciripedium Zumagl.
Criogenes Salisb.
Criosanthes Raf.
Fissipes Small
Hypodema Rchb.
Sacodon Raf.
Schizopedium Salisb.


Taxonomy

Comparison between a DNA-analysis and the morphological characteristics in this genus has shown that there is a high degree of divergence between the two, probably due to long periods of isolation or extinction of intermediate forms. The Eurasian species with yellow or red flowers form a distinct group from the North American species with yellow flowers. The Pelican Orchid (Cypripedium irapeanum) and the California Lady's Slipper (Cypripedium californicum) are probably the first diverging line. They share several similarities with their sister group Selenipedium.


Species and natural hybrids

There are approximately 356 species in this genus, including:
Yellow Lady's-Slipper
(Cypripedium calceolus)
type species
Mocassin Flower
(Cypripedium acaule)
Showy Lady's-slipper
(Cypripedium reginae)

Cypripedium acaule : Mocassin Flower, Pink Lady's-Slipper,Two-leaved Lady's-slipper (C. and E. Canada, NC & E U.S.A)
Cypripedium agnicapitatum (Manchuria)
Cypripedium alaskanum (C. guttatum C. yatabeanum; Alaska)
Cypripedium andrewsii (C. candidum C. parviflorum var. pubescens) (E Canada, NC & NE U.S.A)
Cypripedium arietinum : Ram's-head Lady's-slipper (C & E Canada, NC & NE U.S.A)
Cypripedium bardolphianum (China)
Cypripedium bardolphianum var. bardolphianum (China)
Cypripedium bardolphianum var. zhongdianense (China)
Cypripedium calceolus (Yellow Lady's-Slipper; Europe to Japan)
Cypripedium calcicolum (China)
Cypripedium californicum (California Lady's-Slipper; Oregon, N. California)
Cypripedium candidum (Small White Lady Slipper; SE Canada, NC & E U.S.A)
Cypripedium catherinae (C. macranthon C. shanxiense; Russian Far East)
Cypripedium cheniae (China)
Cypripedium columbianum (C. montanum C. parviflorum var. pubescens; W Canada, NW U.S.A)
Cypripedium cordigerum (Heart-Lip Lady's-slipper; N Pakistan to Himalaya, S Tibet)
Cypripedium daweishanense (S.C.Chen & Z.J.Liu) S.C.Chen & Z.J.Liu (2005) (Yunnan, China South-Central)
Cypripedium debile (Frail Lady's-slipper) (Japan, Taiwan, China)
Cypripedium dickinsonianum (Mexico (S Chiapas) to Guatemala)
Cypripedium elegans (E Nepal to China)
Cypripedium fargesii (China)
Cypripedium farreri (China)
Cypripedium fasciculatum (Brownie Lady's-slipper, Clustered Lady's-slipper; W U.S.A)
Cypripedium fasciolatum (China)
Cypripedium flavum (Yellow Lady's-slipper; SE Tibet, SC China)
Cypripedium formosanum (Formosa Lady's-Slipper; C Taiwan)
Cypripedium forrestii (China)
Cypripedium franchetii (Franchet's Lady's-slipper; C & SC China)
Cypripedium froschii (China)
Cypripedium guttatum (Spotted Lady's-Slipper; European Russia to Korea, Alaska to Yukon)
Cypripedium henryi (Henry's Lady's-slipper; C China)
Cypripedium x herae . (C.parviflorum x C.reginae) (Manitoba, Canada)
Cypripedium himalaicum (SE Tibet to Himalaya)
Cypripedium irapeanum (Pelican Orchid, Irapeao Lady's-slipper; Mexico to Honduras)
Cypripedium japonicum (Japan Lady's-slipper; China, Korea, Japan)
Cypripedium kentuckiense (Kentucky Lady's-Slipper, Southern Lady's-Slipper; C & E U.S.A)
Cypripedium lentiginosum (China)
Cypripedium lichiangense S.C.Chen & P.J.Cribb (China (SW Sichuan, NW Yunnan), NE Myanmar)
Cypripedium lichiangense var. daweishanense S.C.Chen & Z.J.Liu (now synonym of Cypripedium daweishanense (S.C.Chen & Z.J.Liu) S.C.Chen & Z.J.Liu 2005)
Cypripedium ludlowii (SE Tibet)
Cypripedium macranthos (Large-flowered Lady's-slipper; E Belarus to temperate E Asia)
Cypripedium malipoense S.C.Chen & Z.J.Liu (Yunnan, China South-Central)
Cypripedium margaritaceum (Pearl-white Lady's-slipper; China)
Cypripedium micranthum (China)
Cypripedium molle (Mexico)
Cypripedium montanum (Large Lady's-slipper, Mountain Lady's-slipper, White Lady's-slipper, Moccasin flower; Alaska to California)
Cypripedium morinanthum (Manchuria)
Cypripedium neoparviflorum (Manchuria)
Cypripedium palangshanense (China)
Cypripedium parviflorum Salisb. (Canada, E U.S.A)
Cypripedium parviflorum var. parviflorum (Canada, E U.S.A.)
Cypripedium parviflorum var. pubescens (Yellow Lady's-slipper; N. America; rhizome geophyte)
Cypripedium passerinum (Franklyn's Lady's-slipper, Small White Northern Lady's-slipper, Sparrow's Egg Lady's-slipper; Alaska to Canada, Montana)
Cypripedium plectrochilum (N Myanmar to SC China)
Cypripedium pubescens (Greater yellow lady's-slipper)
Cypripedium reginae Walter : Large White Lady's-slipper, Queen's Lady's-slipper, Showy Lady's-slipper; C & E Canada, NC & E. U.S.A)
Cypripedium roseum (Manchuria)
Cypripedium rubronerve (China)
Cypripedium segawai (EC Taiwan)
Cypripedium shanxiense (China to N Japan)
Cypripedium sichuanense (China)
Cypripedium sinapoides (Manchuria)
Cypripedium subtropicum (SE. Tibet)
Cypripedium taibaiense (China)
Cypripedium tibeticum (Sikkim to C China)
Cypripedium ventricosum (Russia to Korea)
Cypripedium wardii (SE. Tibet, China)
Cypripedium wenqingiae (C. farreri C. tibeticum; China)
Cypripedium wumengense (China)
Cypripedium yatabeanum (Russian Far East to N & NC Japan, Aleutian Islands to SW Alaska)
Cypripedium yunnanense (SE Tibet, China)
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