The fungi constitute second largest group of organism in the world afcter insects. The fungi are both friends as well as foes to human beings. With the liberelization of import and export of large quantities of agricultural, horticultural and forest tree material, the risk of spread of fungi as well as other pathogens into new areas has also increased. The current level of ingeranceof most microbs groups has major implecations for biodiversity conservation, sustainable use and their management. Understanding the potential of natural resources of northwest Himalayas the Mycoflora data pertaning to ecosystem maintenance is given in the present book. In this book, fungal genera species reported from Himachal Predesh have been listed in alphabetical order. Each genus is followed by the sub division and class from which it belongs. From locality from where the species belonging to 531 genera have been recorded has also been mentioned, In this monograph 1856 fungal species belonging to 531 genera have been recorded on 786 host and substrata in the state. The present volume Mycoflora of North West Himalayas: Himachel Pradesh revails the extent of fungal species reported from this region with the obvious conclusion that further servey and search will pay rich dividends.