1. Arditti J (1979) Aspects of physiology of orchids. Adv Bot Res 7:421–655
2. Arditti J (1982) North American terrestrial orchids. In J Arditti, ed, Orchid biology. II. Reviews and perspectives. Orchid seed germination and seedling culture-a manual. Cornell University Press, Ithaca, New York, pp 278–293
3. Arditti J, Ernst R (1984) Physiology of germinating orchid seeds. In J Arditti, ed, Orchid biology reviews and perspectives. Cornell University Press, Ithaca, New York, pp 177–222
4. Andronova EV, Batygina TB, Vasilyeava VE (2000) Protocorm. In T Batygina, ed, Embryology of flowering plants: terminology and concepts. Science Publishers, New Hampshire, pp 329–334
5. Basker S, Narmathabai V (2010) In vitro propagation of an epiphytic and rare orchid Eria bambusifolia Lindl. Res Biotech 1:15–20