Although they have great appeal little is known about the reproduction in nature of these vulnerable species. This detailed survey uses a combination of field and laboratory experiments, and covers the seed biology, propagation, plant growth, fungal associations, seasonal rhythm and life history of thirty-six genera of orchids of the temperate, northern hemisphere.
Re-issue, originally published in 1995.
Introduction; 1. Properties of 'dust' seeds; 2. Seed development; 3. Seed survival; 4. Requirements for germination; 5. Fungi; 6. Germination processes; 7. Underground organs; 8. Orchid mycorrhiza; 9. Abiotic factors in growth and development; 10. Life history and phenology; 11. Propagation; 12. Effects of orchid mycorrhiza; 13. Description of genera; Literature; Appendix A. Media; Appendix B. Names and synonyms.
'... fascinating as well as informative ... very much a book for the physiological botanist and those involved in the culture and preservation of terrestrial orchids. Many of you who just dabble in the subject may also find it enlightening and interesting.' The Journal of the Orchid Society of Great Britain 'Knowledge of orchid seed and seedling biology is essential to orchid conservationists, propagators and population biologists, and this book is an excellent reference volume.' Margaret M. Ramsey, Annals of Botany '... a well-written, thoroughly researched (600 references are cited) and useful book, which tackles the complexity of the subject lucidly ... provides abundant theoretical and practical advice to the orchid propagator.' A. J. Richards, Experimental Physiology 'This work must surely be regarded as the definitive study on orchid fungal associations (mycorrhiza) to date ... this scholarly work comes highly recommended, especially to those who like to know a little more than one finds in the average book on orchids ... you will spend many hours fascinated by the contents of this book.' Gavin J. McDonald, South African Orchid Journal ' ... a valuable resource. The text is packed with information, logically presented, and highly readable - an amazing accomplishment.' D. H. Firmage, Israel Journal of Plant Sciences 'For those growers seeking a challenge, and for those researchers interested in pursuing the intricate relationships between fungus and orchid, cultivation of terrestrial orchids provides a significant challenge. Those persons will find Rasmussen's insightful writing and thorough explication of the associations between these organisms the sine qua non for intelligent attempts to grow terrestrial orchids ... Anyone seriously interested in terrestrial orchids, their development, mycotrophy, ecology, and cultivation can ill afford not to use Hanne Rasmussen's book as a vade mecum.' William Louis Stern, University of Florida, HortScience ' ... research workers entering this area of science for the first time will find this a very useful introduction to the subject.' Hugh Pritchard, Seed Science Research 'Concise and well arranged ... the author steers a careful course between the purely academic biological textbook and the laboratory manual, and in my view has been extremely successful in bridging the two with a work that will be widely consulted by botanists, ecologists, horticulturalists and conservationists ... indispensable for the orchidologist and specialist grower...' Phil Lusby, The New Plantsman