The orchids are a group of extremely interesting plants which outnumber all the other plant groups in the Plant Kingdom. Numbering about 20,000 species, they exhibit pollination-related floral complexities, produce a large number of microscopic, and poorly organized seeds, and require a fungal endophyte (mycorrhiza) for their germination and growth in nature. The morphological, physiological, and genetic peculiarities inherent in this group of plants have ...
