Cymbidium
(pronounced: sim-BID-ee-um)
Classification
Cymbidieae subtribe Cyrtopodiinae. DuPuy and Cribb (1988) divide the genus into three subgenera. In subgenus Cymbidium, comprising most of the larger-flowered species, the lip is free and there are usually two, cleft pollinia. Subgenus Cyperorchis bears f
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Overview
Caespitose epiphytes, lithophytes and terrestrials, rarely saprophytes, with coarse, thick roots. Pseudobulbs prominent or absent, concealed by persistent leaf bases. Leaves several, linear-ligulate to lanceolate, arching or erect, thin-textured to rigid-leathery, alternate, usually distichous. Inflorescences usually scapose racemes, erect to pendent, somtimes solitary flowers. Flowers often very showy, sometimes fragrant, cupped to bell-shaped (pendent), concolor or longitudinally striped. Sepals and petals usually subsimilar, free, spreading. Lip three-lobed, free or fused to the column at the base, the lateral lobes erect, with a callus of two ridges or two swellings. Column elongate, arching, +/- winged, +/- a short foot; pollinia 2 and deeply cleft or 4 in two unequal pairs, subsessile by short caudicles on a common viscidium.
Etymology
From the Greek kymbes, meaning a boat-shaped cup, referring to the boat-shaped lip.
Distribution
A genus of 44 species ranging from the Northwest Himalaya to Japan and south through the Philippines, New Guinea and Australia.
Care and Culture Card
See basic growing conditions and care information below.
Grow Cymbidium in pots with a medium grade potting mixture rich in organic matter. Provide intermediate temperatures, bright diffuse light, and steady watering throughout the year, the root system should never fully dry out between waterings. Although most species prefer very bright light, only the lowland species (mostly those with pendent inflorescences) will tolerate consistently warm temperatures during the growing season. Most species are heavy feeders and will benefit from generous fertilizing during active growth. The larger-flowered species require a chilling period at the end of the growing season of several weeks below 12? C (54? F) in order to initiate the following yearās inflorescences.
Literature
Andrew, K. 2000. Cymbidium devonianum, part 1. Orchid Rev. 108(1231):19-22. Andrew, K. 2000. Cymbidium tigrinum, a gem. Orchid Rev. 108(1236):348-350. Averyanov, L. V. and E. A. Christenson 1998. Orchids of Vietnam: Cymbidium schroederi. Orchids 67(7):712-713. Bartareau, T. 1995. The pollination of Cymbidium madidum Lindley and C. suave R. Br. by native bees -- a case of floral reward deception? Orchadian 11(10):487-495. Clements, M. A. and D. L. Jones 1996. Conspectus of Cymbidium (Orchidaceae) in Papua New Guinea with the description of a new species. Lasianthera 1(1):26-31. Comber, J. B. 1980. The species of Cymbidium in Java. Orchid Digest 44:165-168. Comber, J. B. and R. Nasution 1978. A new Indonesian Cymbidium: Cymbidium hartinahianum. Orchid Digest 42:55-57. Cribb, P. J. 1997. Variation in Cymbidium eburneum and C. lowianum in China. Orchid Rev. 105(1215):155-157. Cribb, P. J. and D. DuPuy 1984. Cymbidium longifolium and C. elegans (Orchidaceae). Kew Bull. 38:65-67. DuPuy, D. and P. Cribb 1988. The genus Cymbidium. Timber Press, Portland. DuPuy, D. J. and P. J. Cribb 1988. Cymbidium rectum Ridl., a recently rediscovered species from Borneo. Orchid Review 96(1136):184-188. DuPuy, P. J., B. V. Ford-Lloyd and P. J. Cribb 1985. A numerical taxonomic analysis of Cymbidium section Iridorchis (Orchidaceae). Kew Bull. 40(2):421-434. DuPuy, D. J. and T. Lamb 1984. An annotated contribution to an understanding of the genus Cymbidium Sw., based upon its species found in Sabah, eastern Malaysia. Orchid Digest 48:99-109. Feng, K.-M. and H. Li 1980. A new species of Orchidaceae from Cymbidium. Acta Bot. Yunnanica 2(3):334-336. Feng, K.-M. and H. Li 1987. A new species of Orchidaceae from Cymbidium. Wild Orchid J. 1:26-27. Kjellesson, G., F. N. Rasmussen and D. DuPuy 1985. Pollination of Dendrobium infundibulum, Cymbidium insigne (Orchidaceae) and Rhododendron lyi (Ericaceae) by Bombus eximus (Apidae) in Thailand: a possible case of floral mimicry. J. Trop. Ecol. 1:289-302. Krishna, B. and A. R. K. Sastry 1972(1975). Cymbidium tigrinum Parish ex Hook., a new record from Nagaland, India. Bull. Bot. Soc. India 14(1-4):179-180. Li, H. and G. Feng 1989. A new species of the Sect. Iridorchis of the genus Cymbidium. Acta Bot. Yunnanica 11:39-40. Liu, Y.-F. 1997. Oriental Cymbidiums. Orchids 66(11):1148-1153. Macpherson, K. and H. M. R. Rupp 1934. The pollination of Cymbidium iridifolium Cunn. North Queensl. Nat. 25:26. Mark, F., H. Fu-Shun and J. A. Fowlie 1986. An artificial key to the Cymbidium species of Taiwan. Orchid Digest 50:13-36. Obara-Okeyo, P. and S. Kako 1998. Genetic diversity and identification of Cymbidium cultivars and measured by random amplified polymorphic DNA (RAPD) markers. Euphytica 99:95-101. Quisumbing, E. 1940. The genus Cymbidium in the Philippines. Philippine J. Sci. 72:481-492. Reeve, T. M. 1984. The native Cymbidium species of Papua New Guinea. Orchadian 8(2):33-35. Smith, P. and N. Paton 1977. Leaf phenolic acids as chemical markers for Cymbidium floral albinism. Australian Orchid Rev. 42(4):185-187. Tung, S. H., X. L. Ye, E. C. Yeung and S. Y. Zee 1999. Ultrastructural aspects of megasporogenesis in Cymbidium sinense (Orchidaceae). Lindleyana 14(4):178-192. Weckerle-Thrun, C. 1996. Growing Chinese Cymbidium species in southern California. Orchid Digest 60(3):117-119. Wolff, E. Chinese Cymbidium species, part I. Orchids 68(7):682-693. Wood, J. and D. DuPuy 1984. A recently described Cymbidium from Borneo, Cymbidium borneense J. J. Wood. Orchid Digest 48:115-116. Wu, Y. H. and H. C. Chen 1980. A taxonomic review of the orchid genus Cymbidium in China. Acta Phytotax. Sinica 18:292-307.
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