• Cypripedioideae
  • Taxonomy
  • Literature
  • Calcicolous
• Paphiopedilum
  • Data Sheets
  • Species Descriptions
  • Species Photos
  • Primary Hybrid Photos
  • Complex Hybrid Photos
• Phragmipedium
  • Data Sheets
  • Species Descriptions
  • Species Photos
  • Primary Hybrid Photos
  • Complex Hybrid Photos
• Cypripedium
  • Species Photos
  • Hybrid Photos
• Selenipedium
  • Species Photos
• Mexipedium
  • Data Sheet & Photos

**Many thanks to Natalie Schmaltz and Rob Zuiderwijk for providing me with articles previously on my want list**

Want List:

Periodicals

• Paphiopedilum World: 1971 July (vol. 1, iss. 1); 1972-1973 (vols. 2-3)
• Caesiana: All
• Lindleyana: All

Books/Theses

• American Orchid Society, and Royal Horticultural Society. The Paphiopedilum Reference Book: Consisting of Sanders One-Table Hybrid List Complete Through 1990 and AOS Awarded Paphiopedilums Complete Through 1991. West Palm Beach, FL: American Orchid Society, 1992-1993(?).
• Boze, M.J. An Action Spectrum for Stomata in Paphiopedilum Insigne (Orchidaceae), 1986.
• Bubeck, Susan K. A Study of Paphiopedilum Meristem Culture, 1985, 1973.
• Burnett, T. Paphiopedilum Species: A Guide to Award Standards. South Lake, WA, Australia: Orchid Society of Western Australia, 1996.
• Caterina, Micha. Establishment of Phylogenetic Relationships Within the Genus Phragmipedium Using RAPD-PCR Fingerprinting, 1995.
• Erdmann, Duane J. Notes on the Subgenus Brachypetalum of the Genus Paphiopedilum. Rochester, NY: Author, 1982.
• Green, S. Bacterial Rot of Paphiopedilum Orchids, 2000.
• Karasawa, Kohji. The Genus Paphiopedilum. Tokyo, Japan: Seibundo Shinkosha, 1982.
• Kataki, S.K. Lady's Slipper: Orchids of India. Howrah, India: POSSCEF, Botanical Survey of India, 1984.
• Mai, Fen. Slipper Orchids: The Genus Paphiopedilum. Taibei Shi: Shu xin chu ban she, 1987.
• McDonald, Sandra K. A Cytological Study of Certain Paphiopedilum Species and Hybrids With Particular Reference to the Paphiopedilum Harrisianum Complex. Storrs, CN, 1976.
• Nelson, Sherman D. Stomatal Physiology of Paphiopedilum SPP., 1976.
• Orchid Biology: Reviews and Perspectives 1-2, 6-current
• Pasetti, Mario. Le Cypripedioideae : Storia, Specie, Coltivazione Dei Generi Criosanthes, Cypripedium, Mexipedium, Paphiopedilum, Phragmipedium, Selenipedium. Varese, France: ALAO, 1995.
• Rentoul, J.N. Cymbidiums and Slippers. Seattle: University of Washington Press, 1980.
• Stebbins, G. Ledyard. Chromosomal Evolution in Higher Plants. Reading, Mass: Addison-Wesley, 1971.
• Sub-Tropical Orchid Council Judging Committee. The Genus Paphiopedilum: A Guide to the Species. Queensland, Australia: Sub-Tropical Orchid Council, 1978.
• Swinson, A. Frederick Sander: The Orchid King. London: Hodder and Stoughton, 1970.
• Watrous, Scott B. Artificial Induction of Polyploidy in Paphiopedilum (Orchidaceae), 1985.
• Xiao, Y. Paphiopedilum in Taiwan (Taiwan Tuo Xie Lan Zhuan Ji). Zhanghua Shi, Taiwan: Taiwan Paphiopedilum Society (Zhonghuaminguo Taiwan Sheng Tuo Xie Lang Xie Hui), 19(?).
• Young, Gillian. Orchids in Line. Oxford, England: R & E Ratcliffe Orchids Ltd., 1975.

General Articles

• Averyanov, L. V. "Paphiopedilum Helenae (Orchidaceae), a New Slipper Orchid from the North Vietnam." Botanicheskii Zhurnal 81, no. 9 (1996): 105-10.
• Min, Aung Aung, and Sai Tee Tan. "RAPD Analysis of DNA Polymorphisms Among Three Slipper Orchid Species, Barbatum, P. Callosum, and P. Niveum." Asia-Pacific Journal of Molecular Biology and Biotechnology 4, no. 3 (Sep 1996): 196-202.

Bibliography:

Books

• Allikas, Greg, and Ned Nash. Orchids. San Diego, CA: Thunder Bay Press, 2000.
• American Orchid Society. 1990 Awards Annual. Tokyo: Shinkikaku Company, Ltd., 1992.
• Averyanov, L. et al. Slipper Orchids of Vietnam. Portland, OR: Timber Press, 2003.
• Bailey, J. The Facts on File Dictionary of Botany. New York: Market House Books Ltd., 2003.
• Batchelor, Stephen R. Your First Orchid. Delray Beach, FL: American Orchid Society, 2001.
• Bechtel, Helmut, Phillip J. Cribb, and Edmund Launert. The Manual of Cultivated Orchid Species, Third Edition. Cambridge, MA: The MIT Press, 1992.
• Bennett, Keith S. The Tropical Asiatic Slipper Orchids: Genus Paphiopedilum. North Ryde, NSW, Australia: Angus & Robertson, 1984.
• Birk, Lance A. The Paphiopedilum Growers Manual. Santa Barbara, CA: Pisang Press, 1983.
• ———. The Paphiopedilum Growers Manual. Santa Barbara, CA: Pisang Press, 2004.
• Braem, Guido J., Charles O. Baker, and Margaret L. Baker. The Genus Paphiopedilum, Natural History and Cultivation, Volume 1. Kissimmee, FL: Botanical Publishers, 1998.
• Braem, Guido J., Charles O. Baker, and Keith S. Bennett. The Genus Paphiopedilum, Natural History and Cultivation, Volume 2. Kissimmee, FL: Botanical Publishers, 1999.
• Braem, Guido J., and Guy Chiron. Paphiopedilum. Saint-Genis Laval, France: Tropicalia, 2003.
• Cash, Catherine. The Slipper Orchids. Portland, OR: Timber Press, 1991.
• Cribb, Phillip J. The Forgotten Orchids of Alexandre Brun. New York: Grove Press, 1992.
• ———. The Genus Cypripedium. Portland, OR: Timber Press, 1997.
• ———. The Genus Paphiopedilum. Kota Kinabalu, Sabah, Malaysia: Natural History Publications in association with Royal Botanic Gardens, Kew, 1998.
• ———. Slipper Orchids of Borneo. Kota Kinabalu, Malaysia: Natural History Publications, 1997.
• Curtis, Charles H. Orchids for Everyone. London: J.M. Dent & Sons, Ltd., 1910.
• Desbois, F. Cypripedium, Selenipedium & Uropedium, Monographie. France: F. Meyer, 1898.
• Dressler, Robert L. The Orchids, Natural History and Classification. Cambridge, MA: Harvard University Press, 1990.
• ———. Phylogeny and Classification of the Orchid Family. Melbourne, Australia: Cambridge University Press, 1993.
• Fitch, Charles M. Growing Orchids Under Lights. Delray Beach, FL: American Orchid Society, 2002.
• Graham, Digby, Robin Graham, and Ronald Roy. Slipper Orchids: The Art of Digby Graham. Wellington, NSW, Australia: Reed, 1983.
• Handbook on Judging and Exhibition, 11th Edition. Delray Beach, FL: American Orchid Society, 2002.
• Hansen, Eric. Orchid Fever, A Horticultural Tale of Love, Lust, an Lunacy. New York: Vintage Departures, 2000.
• Hawkes, Alex D. Orchids, Their Botany and Culture. New York: Harper & Brothers, 1961.
• Hernstrom, T.C. Paphiopedilum. TJD Co., 1982.
• Hunt, David R. Orchids from Curtis's Botanical Magazine. London: Curwen Books, 1981.
• Koopowitz, Harold. Orchids and Their Conservation. Portland, OR: Timber Press, 2001.
• Koopowitz, Harold, and Norito Hasegawa. Novelty Slipper Orchids: Breeding and Cultivating Paphiopedilum Hybrids. North Ryde, NSW, Australia: Angus & Robertson, 1989.
• Levin, D.A. The Role of Chromosomal Change in Plant Evolution. New York: Oxford University Press, 2002.
• Linden, Jean. Pescatorea, Iconography of Orchids. Brussels: M. Hayez, 1860.
• Noble, Mary. You Can Grow Orchids, Revised Edition V. Jacksonville, FL: McQuerry Orchid Books, 1999.
• Orchid Biology: Reviews and Perspectives III. Edited by J. Arditti. Ithaca, NY: Cornell University Press, 1984.
• Orchid Biology: Reviews and Perspectives IV. Edited by J. Arditti. Ithaca, NY: Cornell University Press, 1987.
• Orchid Biology: Reviews and Perspectives V. Edited by J. Arditti. Ithaca, NY: Cornell University Press, 1990.
• Orchid Pests and Diseases. Edited by James B. Watson. Delray Beach, FL: American Orchid Society, 2002.
• The Orchids: Scientific Studies. Edited by C.L. Withner. NY: Wiley, 1974.
• Ortho's All About Orchids. Meredith Books: Des Moines, IA, 1999.
• Pridgeon, Alec. The Illustrated Encyclopedia of Orchids. Portland, OR: Timber Press, 1992.
• Proceedings of the Eleventh World Orchid Conference. Edited by Kiat W. Tan. Singapore: Internation Press Co, Ltd., 1984.
• Proceedings of the Third World Orchid Conference. London: Royal Horticultural Society, 1960.
• Rands, R.J. Paphiopedilum Species. Los Angeles: Author, 1973.
• Ratcliffe, Edna. The Enchantment of Paphiopedilums: Anthology of Facts and Fancies. Didcot, England: Author, 1977.
• Rix, M. Art in Nature: Classic Botanical Prints from the Eighteenth to the Twentieth Century. New York: Rizzoli, 1991.
• Sheehan, Thomas J. Ultimate Orchid. New York: DK Publishing, Inc., 2001.
• Shuttleworth, Floyd S. et al. Orchids, Revised Edition. New York: Golden Press, 1982.
• Simpson, Michael G. Plant Systematics. Amsterdam: Elsevier Academic Press, 2006.
• Stiff, Ruth L.A. Flowers from the Royal Gardens of Kew. Hanover, NH: University Press of New England, 1988.
• Taiwan Paphiopedilum Society. Paphiopedilum in Taiwan II, 1999.
• ———. Paphiopedilum in Taiwan III, 2003.
• Veitch, James & Sons. A Manual of Orchidaceous Plants. Chelsea, England, 1887-94.
• Walters, V.H., and C. Cash. A Survey of The Slipper Orchids. Shelby, NC: Carolina Press, 1973.
• White, Judy. Taylor's Guide to Orchids. New York: Houghton Mifflin Co., 1996.
• Whittle, Tyler. The Plant Hunters. Philadelphia: Chilton Book Co., 1970.
• Williams, Benjamin S. The Orchid Grower's Manual, Seventh Edition. London: Victoria and Paradise Nurseries, 1894.
• Withner, Carl.L. A Book of Orchids. New York: William Morrow and Company, Inc., 1985.
• Zachos, Ellen. Orchid Growing for Wimps. New York: Sterling Publishing Co., 2002.

Book Excerpts

• Ames, Oakes. Schedulae Orchidianae. Boston, 1922-25.
• Bentham, G., and J.D. Hooker. Genera Plantarum. London: L Reeve & Co., 1883.
• Blanco, Manuel. Flora de Filipinas. Manila: D. Miguel Sanchez, 1845.
• Boissier, Edmond. Flora Orientalis Sive Enumeratio Plantarum in Oriente, Vol. V. Lugduni, France: Apud H. Georg, Bibliopolam, 1881.
• Davis, R.S., and M.L. Steiner. Philippine Orchids. New York: William Frederick Press, 1952.
• Dressler, R.L. Field Guide to the Orchids of Costa Rica and Panama. Ithaca, NY: Cornell University Press, 1993.
• Dunsterville, G.C.K., and L.A. Garay. Venezuelan Orchids Illustrated. Amsterdam: Andre Deutsch Ltd., 1959.
• Franchet, A., and L. Savatier. Enumeratio Plantarum in Japonia Sponte Crescentium, Vol. II. Paris: Apud F. Savy. Bibliopolam, 1879.
• Garay, L.A. 225 (1). Orchidaceae: Cypripedioideae, Orchidoideae, Neottioideae. Flora of Ecuador, vol. 9, 1978.
• Godfery, M.J. Monograph & Iconograph of Native British Orchidaceae. Cambridge: University Press, 1933.
• Griffith, William. Icones Plantarum Asiaticarum, Part III: Monocotyledonous Plants. Calcutta: Charles A Serrao, 1851.
• Hoehne, F.C. Iconografia de Orchidaceas Do Brasil. S. Paulo, Brasil: Funtimod; Fortuna Co. Ltd., 1949.
• Hooker, J.D. The Flora of British India. London: L Reeve & Co., 1890.
• Hooker, W.J. Exotic Flora. Edinburgh, Great Britain: William Blackwood, 1873.
• Jackson, Benjamin D. Guide to the Literature of Botany. London: Longmans, Green & Co., 1881.
• Lecoufle, M., and H. Rose. Orchids, Culture and Descriptions. London: Crosby Lockwood & Sons Ltd., 1957.
• Lindley, John. Collectanea Botanica; or Figures and Botanical Illustrations of Rare and Curious Exotic Plants. London: Richard and Arthur Taylor, 1821.
• ———. The Genera and Species of Orchidaceous Plants. London, 1840.
• ———. Orchidearum Sceletos. London: Ricardi Taylor, 1826.
• Millar, Andree. Orchids of Papua New Guinea. Portland, OR: Timber Press, 1999.
• Pradhan, U.C. Indian Orchids: Guide to Identification and Culture. Bharat Lithographing Co., 1976.
• Rand, Edward Sprague. Orchid Culture. New York: Rural Publishing, 1876.
• Reichenbach fil., H. G. Otia Botanica Hamburgensia. Hamburgi: Dieb. fest. paschal., 1878.
• ———. Xenia Orchidacea, Vol. I. Leipzig, Germany: F.A. Brockhaus, 1858.
• ———. Xenia Orchidacea, Vol. II. Leipzig, Germany: F.A. Brockhaus, 1874.
• ———. Xenia Orchidacea, Vol. III. Leipzig, Germany: F.A. Brockhaus, 1900.
• Reichenbach, H. G. Beitrage zu einer Orchideenkunde Central-Amerika's. Hamburg, Germany: Druck von Th. G. Meissner, 1866.
• ———. Iconographia Botanica Seu Plantae Criticae. Leipzig, 1825.
• Riehl, Matthias. Orchids. London: Andre Deutsch Ltd., 1958.
• Rodrigues, J. Barbosa. Genera et Species Orchidearum Novarum. Rio de Janeiro: Sebastianopolis, 1877.
• Schlechter, R. Die Orchideenfloren der Sudamerikanischen Kordillerenstaaten, II. Colombia. Berlin: Dahlem, 1920.
• ———. Die Orchideenfloren der Sudamerikanischen Kordillerenstaaten, III. Ecuador. Berlin: Dahlem, 1921.
• ———. Die Orchideenfloren der Sudamerikanischen Kordillerenstaaten, IV. Peru. Berlin: Dahlem, 1921.
• ———. Die Orchideenfloren der Sudamerikanischen Kordillerenstaaten, V. Bolivia. Berlin: Dahlem, 1922.
• Seidenfaden, G., and T. Smitinand. The Orchids of Thailand, A Preliminary List, Part I. Bangkok: The Siam Society, 1959.
• ———. The Orchids of Thailand, A Preliminary List, Part I. Bangkok: The Siam Society, 1963.
• Sheehan, T., and M. Sheehan. An Illustrated Survey of Orchid Genera. Portland, OR: Timber Press, 1994.
• Smith, J.J. Die Orchideen Von Java. Batavia, Germany: G. Kolff & Co., 1907.
• ———. Die Orchideen Von Java. Leiden, Germany: E.J. Brill, 1908.
• Stein, Berthold. Stein's Orchideenbuch. Berlin: Verlag Von Paul Parey, 1892.
• Van Der Cingel, N.A. An Atlas of Orchid Pollination. Rotterdam, Netherlands: A.A. Balkema, 2001.
• von Faber, Carl F. "Beitrag Zur Vergleichenden Anatomie der Cypripedilinae," Ruprecht-Karls-Universitat zu Heidelberg, 1904.
• Walpers, Guilielmo G. Annales Botanices Systematicae, Vols 1, 3. Leipzig, Germany: Friderici Hofmeister, 1848-1853.
• Wight, Robert. Icones Plantarum Indiae Orientalis: Or Figures of Indian Plants. Madras: P.R. Hunt, American Mission Press, 1852.
• Williams, L.O., and P.H. Allen. Orchids of Panama, A Facsimile Reprint of the Orchidaceae, Flora of Panama. St. Louis, MO: Missouri Botanical Garden, 1980.

General Articles

• Adams. H., and E. Anderson. "A Conspectus of Hybridization in the Orchidaceae." Evolution 12, no. 4 (Dec 1958): 512-18.
• Albert, V. A. "Cladistic Relationships of the Slipper Orchids (Cypripedioideae: Orchidaceae) from Congruent Morphological and Molecular Data." Lindleyana 9, no. 2 (1994): 115-32.
• Albert, V. A., and M. W Chase. "Mexipedium: A New Genus of Slipper Orchid (Cypripedioideae: Orchidaceae)." Lindleyana 7, no. 3 (1992): 172-76.
• Albert, V. A., and B Pettersson. "Expansion of Genus Paphiopedilum Pfitzer to Include All Conduplicate-Leaved Slipper Orchids (Cypripedioideae: Orchidaceae)." Lindleyana 9, no. 2 (1994): 133-39.
• Arditti, J., J.D. Michaud, and P.L. Healey. "Morphometry of Orchid Seeds. I. Paphiopedilum and Native California and Related Species of Cyrpripedium." American Journal of Botany 66, no. 10 (Nov/Dec 1979): 1128-37.
• Assmann, S.M. "Enhancement of the Stomatal Response to Blue Light by Red Light, Reduced Intercellular Concentrations of CO2, and Low Vapor Pressure Differences." Plant Physiology 87 (1988): 226-31.
• Assmann, S.M., and E. Zeiger. "Stomatal Responses to CO2 in Paphiopedilum and Phragmipedium." Plant Physiology 77 (1985): 461-64.
• Atwood, J.T. "Pollination of Paphiopedilum Rothschildianum : Brood-Site Deception." National Geographic Research 1, no. 2 (1985): 247-54.
• Atwood, J.T. Jr. "The Relationships of the Slipper Orchids (Subfamily Cypripedioideae, Orchidaceae)." Selbyana 7, no. 2/4 (Aug 1984): 129-247.
• Banziger, H., H. Sun, and Y. Luo. "Pollination of a Slippery Lady Slipper Orchid in South-West China: Cypripedium Guttatum (Orchidaceae)." Botanical Journal of the Linnean Society 148 (2005): 251-64.
• Beckner, J. "A New Combination in Paphiopedilum (Orchidaceae)." Selbyana 23, no. 2 (2002): 196.
• Belling, J. "Detachment (Elimination) of Chromosomes in Cypripedium Acaule." Botanical Gazette 78, no. 4 (Dec 1924): 458-60.
• Braem, G.J. "Studies in the Genus Paphiopedilum, 1. A Spectacular Variety of Paphiopedilum Micranthum Tang & Wang." Leaflets of the Schlechter Institute 1 (June 20 1994): 3-4.
• Braem, G.J., S. Ohlund, and R.-J. Quene. "Will the Real Phragmipedium Warszewiczianum Please Stand Up?" Australian Orchid Review Dec/Jan 2004-05: 4-15.
• Braem, GJ, and K Senghas. "The Intriguing Case of Cypripedium Crossii, Its Priority Over Cypripedium Callosum and Its Transfer to the Genus Paphiopedilum." SIDA, Contributions to Botany 19, no. 2 (2000): 249-55.
• Brzosko, E., A. Wroblewska, and M. Ratkiewicz. "Spatial Genetic Structure and Clonal Diversity of Island Populations of Lady's Slipper (Cypripedium Calceolus) from the Biebrza National Park (Northeast Poland)." Molecular Ecology 11 (2002): 2499-509.
• Cameron, KM. "Utility of Plastid PsaB Gene Sequences for Investigating Intrafamilial Relationships Within Orchidaceae." Molecular Phylogenetics and Evolution 31, no. 3 (Jun 2004): 1157-80.
• Cameron, KM et al. "A Phylogenetic Analysis of the Orchidaceae: Evidence from RbcL Nucleotide Sequences." American Journal of Botany 86, no. 2 (Feb 1999): 208-24.
• Case, M.A. "Extensive Variation in the Levels of Genetic Diversity and Degree of Relatedness Among Five Species of Cypripedium." American Journal of Botany 81, no. 2 (Feb 1994): 175-84.
• ———. "High Levels of Allozyme Variation Within Cypripedium Calceolus (Orchidacea) and Low Levels of Divergence Among Its Varieties." Systematic Botany 18, no. 4 (Oct/Dec 1993): 663-77.
• Case, M.A. et al. "Conservation Genetics and Taxonomic Status of the Rare Kentucky Lady's Slipper: Cypripedium Kentuckiense (Orchidaceae)." American Journal of Botany 85, no. 12 (Dec 1998): 1779-86.
• Chase, M.W. "Classification of Orchidaceae in the Age of DNA Data." Curtis's Botanical Magazine (2005): 2-7.
• Chen, Ting-Yu, Jen-Tsung Chen, and Wei-Chin Chang. "Multiple Shoot Formation and Plant Regeneration from Stem Nodal Explants of Paphiopedilum Orchids." In Vitro Cellular; Developmental Biology - Plant 38, no. 6 (Nov/Dec 2002): 595-97.
• ———. "Plant Regeneration Through Direct Shoot Bud Formation from Leaf Cultures of Paphiopedilum Orchids." Plant Cell, Tissue and Organ Culture 76, no. 1 (2004): 11-15.
• Corriveau, Joseph L., and Annette W. Coleman. "Rapid Screening Method to Detect Biparental Inheritance of Plastid DNA and Results for Over 200 Angiosperm Species." American Journal of Botany 75, no. 10 (Oct 1988): 1443-58.
• Cox, A. V. et al. "Phylogenetics of the Slipper Orchids (Cypripedioideae, Orchidaceae): Nuclear RDNA ITS Sequences." Plant Systematics and Evolution 208, no. 3/4 (1997): 197-223.
• Cox, A.V. et al. "Genome Size and Karyotype Evolution in the Slipper Orchids (Cypripedioideae: Orchidaceae)." American Journal of Botany 85, no. 5 (May 1998): 681-87.
• Cribb, P, and P Green. "Proposal to Reject the Name Cypripedium Hirsutum (Orchidaceae)." Taxon 46, no. 4 (1997): 771-72.
• Cribb, Phillip. "511. Phragmipedium Kovachii." Curtis's Botanical Magazine (2005): 8-11.
• ———. "512. Paphiopedilum Vietnamense." Curtis's Botanical Magazine (2005): 12-18.
• ———. "Wild Orchids in Sichuan." Curtis's Botanical Magazine (2005): 71-80.
• Curtis, J.T. "Annual Fluctuation in Rate of Flower Production by Native Cypripediums During Two Decades." Bulletin of the Torrey Botanical Club 81, no. 4 (Jul/Aug 1954): 340-52.
• ———. "Germination and Seedling Development in Five Species of Cypripedium L." American Journal of Botany 30, no. 3 (Mar 1943): 199-206.
• ———. "Peloric Flowers in Cypripedium Reginae Walt." American Midland Naturalist 25, no. 3 (May 1941): 580-83.
• ———. "The Relation of Specificity of Orchid Mycorrhizal Fungi to the Problem of Symbiosis." American Journal of Botany 26, no. 6 (Jun 1939): 390-99.
• Dressler, R.L., and C.H. Dodson. "Classification and Phylogeny in the Orchidacea." Annals of the Missouri Botanical Garden 47, no. 1 (Feb 1960): 25-68.
• Dressler, R.L., and N.H. Williams. "Proposal for the Conservation of the Generic Name Phragmipedium, Rolfe." Taxon 24 (Nov 1975): 691-92.
• Duncan, R.E. "Production of Variable Aneuploid Numbers of Chromosomes Within the Root Tips of Paphiopedilum Wardii." American Journal of Botany 32, no. 8 (Oct 1945): 506-09.
• Duncan, R.E., and J.T. Curtis. "Intermittent Growth of Fruits of Cypripedium and Paphiopedilum. A Correlation of the Growth of Orchid Fruits with Their Internal Development." Bulletin of the Torrey Botanical Club 69, no. 5 (May 1942): 353-59.
• Dunn, S.T., and W.J. Tutcher. "Flora of Kwangtung and Hongkong (China)." Royal Botanic Gardens, Kew. Bulletin of Miscellaneous Information Additional Series X (1912): 270.
• Freudenstein, J.V, and F.N. Rasmussen. "What Does Morphology Tell Us About Orchid Relatonships?--a Cladistic Analysis." American Journal of Botany 86, no. 2 (Feb 1999): 225-48.
• Frohlich, M.W. "Common-Is-Primitive: A Partial Validation by Tree Counting." Systematic Botany 12, no. 2 (Apr/Jun 1987): 217-37.
• G.T. "Poisoning by Cypripedium." Bulletin of the Torrey Botanical Club 6, no. 2 (Feb 1875): 15.
• Gehring, C.A. et al. "Jasmonates Induce Intracellular Alkalinization and Closure of Paphiopedilum Guard Cells." Annals of Botany 80, no. 14 (Oct 1997): 485-89.
• Harley, J.L. "Recent Progress in the Study of Endotrophic Mycorrhiza." New Phytologist 49, no. 2 (Jul 1950): 213-47.
• Heriz-Smith, S. "James Veitch & Sons of Chelsea and Robert Veitch & Son of Exeter, 1880-1969." Garden History 21, no. 1 (Summer 1993): 91-109.
• ———. "James Veitch & Sons of Exeter and Chelsea, 1853-1870." Garden History 17, no. 2 (Autumn 1989): 135-53.
• ———. "James Veitch & Sons, Chelsea: Harry Veitch's Reign, 1870-1890." Garden History 20, no. 1 (Spring 1992): 57-70.
• ———. "The Veitch Nurseries of Killerton and Exeter c. 1780-1863: Part I." Garden History 16, no. 1 (Spring 1988): 41-57.
• ———. "The Veitch Nurseries of Killerton and Exeter c. 1780-1863: Part II." Garden History 16, no. 2 (Autumn 1988): 174-88.
• Hooker, W.J. "Cypripedium Caudatum." Icones Plantarum; or Figures with Brief Descriptive Characters and Remarks of New or Rare Plants 7 (1844): 658-59.
• Huang, Li-Chun et al. "Paphiopedilum Cloning in Vitro." Scientia Horticulturae 91, no. 1/2 (2001): 111-21.
• Humphrey, L.M. "The Somatic Chromosomes of Cypripedium Hirsutum and Six Species of the Genus Habenaria." The American Naturalist 68, no. 715 (Mar/Apr 1934): 184-86.
• J.M.C. "Cypripedium with a Second Labellum." Botanical Gazette 4, no. 8 (Aug 1879): 199-200.
• Jesup, H.G. "Is Cypripedium Spectabile Poisonous to the Touch?" Botanical Gazette 18, no. 4 (Apr 1893): 142-43.
• Karasawa, K. "Karyomorphological Studies in Paphiopedilum, Orchidaceae." Bulletin of the Hiroshima Botanical Garden 2 (Mar 1979): 1979.
• ———. "Karyomorphological Studies in Phragmipedium, Orchidaceae." Bulletin of the Hiroshima Botanical Garden 3 (Dec 1980): 1-49.
• ———. "Karyomorphological Studies on Four Species of Paphiopedilum." Bulletin of the Hiroshima Botanical Garden 5 (Dec 1982): 70-79.
• ———. "Karyomorphological Studies on Nine Species of Paphiopedilum." Bulletin of the Hiroshima Botanical Garden 8 (1986): 23-42.
• ———. "Karyomorphological Studies on the Intraspecific Variation of Paphiopedilum Insigne." La Kromosomo 2-9 (Apr 1978): 233-55.
• ———. "A Revision of Chromosome Number in Some Hybrids of Paphiopedilum." Bulletin of the Hiroshima Botanical Garden 4 (Dec 1981): 1-8.
• Karasawa, K., and M. Aoyama. "Karyomorphological Studies on Three Species of Paphiopedilum." Bulletin of the Hiroshima Botanical Garden 3 (Dec 1980): 69-74.
• ———. "Karyomorphological Studies on Two Species of Paphiopedilum." Bulletin of the Hiroshima Botanical Garden 10 (1988): 1-6.
• Karasawa, K., M. Aoyama, and T. Kamimura. "Karyomorphological Studies on Five Rare Species of Paphiopedilum, Orchidaceae." Annals of the Tsukuba Botanical Garden 16 (1997): 29-39.
• Karasawa, K., and K Saito. "A Revision of the Genus Paphiopedilum." Bulletin of the Hiroshima Botanical Garden 5 (Dec 1982): 1-69.
• Karasawa, K., and R. Tanaka. "C-Banding Study on Centric Fission in the Chromosome of Paphiopedilum." Cytologia 45 (1980): 97-102.
• Kery, M., and K.B. Gregg. "Demographic Analysis of Dormancy and Survival in the Terrestrial Orchid Cypripedium Reginae." Journal of Ecology 92 (2004): 686-95.
• Kull, T. "Cypripedium Calceolus L." Journal of Ecology 87, no. 5 (Oct 1999): 913-24.
• Kumar, M, and K.S. Manilal. "Floral Morphology and Anatomy of Paphiopedilum Insigne and the Taxonomic Status of Cypripedioids (Orchidaceae)." Phytomorphology 42, no. 3/4 (1992): 293-97.
• Lack, H.W. "The Plant Self Impressions Prepared by Humboldt and Bonpland in Tropical America," 2001.
• Lee, Y.I., and N. Lee. "Plant Regeneration from Protocorm-Derived Callus of Cypripedium Formosanum." In Vitro Cell. Dev. Biol. - Plant 39 (Sep/Oct 2003): 475-79.
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CD-Rom

• Bronstein, Howard, and Ursula Hoffmann. "American Orchid Society Awards, 1932-2001." American Orchid Society. (Compact Disc), 2002.
• OrchidWiz Encyclopedia

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