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Contents: Preface. I. Introduction: 1. Geography and climate. 2. Orchid vegetation. 3. History of orchid collection in India. 4. Explorations and orchid studies in Nagaland. 5. New orchid reports. 6. Excluded species. 7. Statistical analysis of orchids. 8. Distribution pattern of orchid species.9. Biology and conservation of orchids. 10. Economic uses. II. Orchidaceae. III. Key to the genera. IV. Enumeration of orchid species. Bibliography. Index to botanical names. From the preface: "This study presents a detailed systematic account of the µOrchidaceae of Nagaland¦ based on 63 genera, 241 species and 4 varieties, with a critical evaluation of the various taxonomic features provided for these taxa; keys for identification; up-to-date nomenclature; detailed descriptions with illustrations; geographical distribution; concise notes on ecology, morphology, importance and uses, conservation and cultivation. "It also presents an introductory chapter on the history of previous works on the Orchidology of India, particularly Nagaland; an introduction to Nagaland as regards its location, physiography and climate; a suitable bibliographical account; index of the scientific names and some photographs. "Investigations over the last many years revealed 32 genera, 153 species and 4 varieties as new additions to the µOrchidaceae of Nagaland¦, including 2 new taxa, 2 re-discoveries and 4 new records for India, 9 new records for North Eastern India, besides several rare and threatened taxa of immense floriculture and scientific value needing. Printed Pages: 308 with 16 colour and 170 b/w photos and 2 maps.