Manual of orchids

This volume, based on the New RHS Dictionary of Gardening, defines and describes the orchid family combining what is current in botany with horticultural practice. The manual covers virtually all 180,000 orchid species, grexes and cultivars available. Each genus is furnished with a precise botanical account, together with guidelines for successful growing, In addition, an introductory essay explores the themes common to all orchids - their botany, propagation, hybridization, conservation and culture.