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A list of key readings about Orchid.
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  • Genera Orchidacearum, Volume 1 Pridgeon, Chase, Cribb and Rassmusen Ed. Oxford University Press, (Nov. 1999). ISBN 9780198505136
  • Genera Orchidacearum, Volume 2 Pridgeon, Chase, Cribb and Rassmusen Ed. Oxford University Press, (Mar. 2001). ISBN 9780198507109
  • Genera Orchidacearum, Volume 3 Pridgeon, Chase, Cribb and Rassmusen Ed. Oxford University Press, (Jul. 2003). ISBN 9780198507116
  • Genera Orchidacearum, Volume 4 Pridgeon, Chase, Cribb and Rassmusen Ed. Oxford University Press, (May. 2006). ISBN 9780198507123
  • Genera Orchidacearum, Volume 5 Pridgeon, Chase, Cribb and Rassmusen Ed. Oxford University Press, (Jun. 2009). ISBN 9780198507130
  • Illustrated Dictionary of Orchid Genera by Alrich et al. Cornell University Press (Sep. 2008) ISBN 9780801447372
  • Illustrated Encyclopedia of Orchids by Alec Pridgeon. Timber Press (Nov. 1992) ISBN 9780881922677
  • The New Encyclopedia of Orchids: 1500 Species in Cultivation by Isobyl la Croix. Timber Press(August 21, 2008) ISBN 9780881928761
  • Botanica's Orchids: Over 1200 Species. Laurel Glen Publishing (Sep. 2002) ISBN 9781571457219

Orchids and fungi

  • Orchids and fungi -- partners for life. August 13th, 2009
    • Three Thai orchids have been found to rely on a wide range of fungi to help them take carbon out of the soil instead of producing their own organic carbon. A detailed study of the relationship, published in the open access journal BMC Biology, also features stunning pictures of the plants.
    • Marc-André Selosse and Mélanie Roy, from the Centre d'Ecologie Fonctionnelle et Evolutive, Montpellier, France, studied Aphyllorchis montana, A. caudata and Cephalanthera exigua orchids with Suyanee Vessabutr and Santi Watthana from the Queen Sirikit Botanic Garden, Thailand. These orchids have no chlorophyll and rely on fungi colonizing their roots for their carbon supply.
    • The plants, which grow on the ground in mountain forests, were collected from 10 different sampling sites in diverse parts of Thailand. The two Aphyllorchis orchids studied were found to associate with a wide range of fungi, while the Cephalanthera was much more specific.
    • Selosse said, "We show for the first time that certain tropical orchids associate with highly diverse soil fungi colonizing their roots; using stable isotopes, we show that they are likely to use these fungi as a carbon source". Most importantly for conservation concerns, all these fungi associate in turn with the roots of nearby green trees, where they collect carbon for the orchids.
    • Speaking about the results of the study, Selosse said, "Plants really interact with fungi in an unexpectedly diverse way - the impression one gains is that there is a great need for more research on biological interactions in the tropics to unravel this diversity".
    • More information: Two mycoheterotrophic orchids from Thailand tropical dipterocarpacean forests associate with a broad diversity of ectomycorrhizal fungi; Mélanie Roy, Santi Watthana, Anna Stier, Franck Richard, Suyanee Vessabutr and Marc-André Selosse; BMC Biology (in press); http://www.biomedcentral.com/bmcbiol/