This book tackles a major problem in modern fern botany, the increasing practice of naming mistaken New species etc. Aspects and origins of the problem are discussed and followed by a comprehensive, annoted list of incorrect names given since Independence in 1947 to pteridophytes occurring in the Indian sub-continent, showing where errors were made and what are hoped to be the correct names. The list includes careful and fully detailed taxonomic reasoning in relation to genera and specifically species, the identity of type-specimens, the application of the latest international code of Botanical nomenclature and the existence of earlier names from various regions of Asia. Over 2,000 names are mentioned in shortly under 100 of the accepted genera and nearly 70 important and necessary new names are given, or new taxa described. Many new records of less known Himalayan ferns are given, resulting from the author's many years of detailed research in British and other European herbaria, as well as 20 years of Himalayan botanical collection and field observation. Many of the new records concern Nepal, for which there is a special appendix, and from where a number of more easterly elements have been found to reach previously unknown Western limit to their range. A detailed reference list and comprehensive index are given and the book starts with a dedication and appreciation of his colleague for 20 years, the late Professor Tsdeus Reichstein. LI . Nob. Of Basel, Switzerland. This book is aimed at the specialist and deals with the detailed elucidation of many persistent nomencultural problems in Ferns in order to help clear way towards the eventual production of an accurate Pteridophyte flora of the whole Indian subcontinent. In also drawing widely on and correlating research on ferns in China and Japan it is highly relevant to the study of Pteridophyte throughout Asia.

The National Botanical Research Institute came into being as the 13th among a chain of National Laboratories established during April, 1953 under the Council of Scientific and Industrial Research by the Govt. of India for advanced research in fields of specialisation which have a direct bearing on socio-economic, industrial and scientific advancement of the nation. Christened initially as National Botanic Gardens, the nucleus around which the institution took shape under its founder- Director Late Prof. K. N. Kaul, was a large herbarium of Indian flora and a centu- old botanical garden spread over 35 ha of land on the banks of River Gomti in the heart of Lucknow city. It’s a matter of great pleasure and profound satisfaction to me that a Golden Jubilee volume entitled, “Pteridology in the New Millennium” is being published and released during the Golden Jubilee year of NBRI in the honour of Professor B. K. Nayar who laid the foundation of the Pteridology Laboratory of the NBRI, which is now a well equipped laboratory for the study of Indian pteridophytes. Professor Nayar is a holistic Botanist as evident through his contributions and publications in almost all the areas of study of Pteridophyta. The contribution of Professor Nayar towards the development of modern Pteridology and the role of NBRI in it is indeed great and very important. His publications will be valuable for the younger generation of scientists in the field as well as for the more mature research workers and teachers.

System of Classification: Ophioglossaceae: Angiopteridanceae; Marattiaceae: Kaulfussiaceae: Osmundaceae: Plagiogyriaceae: Schizaeaceae: Anemiaceae: Parkeeriaceae: Lygodiaceae: Pterdaceae: Chelanthaceae: Adiantaceae: Vittariaceae: Cyatheaceae: Cibotioideae: Cyatheoideae: Dennstaedtiaceae: Hypolepidaceae: Lindsaeaceae: Dryopteridaceae: Onocleoideae: Athyrioideae: Hymenophyllaceae: Gleicheniaceae: Dipteridaceae: Loxogrammaceae: Polypodiaceae: Platyceriodeae: Pleopeltidoideae: Polypodioideae: Microsorioideae: Crypsinioideae: Marsileaceae: Salviniaceae: Azollaceae:

Biodiversity is declining at an alarming rate due to anthropogenic activities around the world. This book is the first volume in the new series Biodiversity Hotspots of the World, which highlights the 36 hotspot regions of the world, regions that were designated as reaping maximum benefit from preservation efforts. This series is our humble attempt to document these hotspots as a conservation and preservation measure. This first volume in the series focuses on the Western Ghats and Sri Lanka, construed as forming a community of species because of their shared biogeographical history. The volume explores the diversity and conservation efforts of the extraordinarily rich species found here, including plants, many of which are found nowhere else in the world; forests, which face tremendous population pressure and have been dramatically impacted by demands for timber and agricultural land; as well as the hotspot’s diverse mammals, birds, insects, and amphibian species, and more. The volumes in this series will be essential resources for researchers and practitioners in the fields of conservation biology, ecology, and evolution.

The Himalaya, a global biodiversity hotspot, sustains about one-fifth of the humankind. Nestled within the north-western mountain ranges of the Himalaya, the Jammu and Kashmir (J&K) State harbours more than half of the biodiversity found in the Indian Himalaya. The wide expanse of State, spread across the subtropical Jammu, through the temperate Kashmir valley, to the cold arid Ladakh, is typical representative of the extensive elevational and topographical diversity encountered in the entire Himalaya. This book, the most comprehensive and updated synthesis ever made available on biodiversity of the J&K State, is a valuable addition to the biodiversity literature with global and regional relevance. The book, arranged into 7 parts, comprises of 42 chapters contributed by 87 researchers, each of whom is an expert in his/her own field of research. The precious baseline data contained in the book would form the foundation for assessing current status of knowledge about the bioresources, identify the knowledge gaps, and help prioritization of conservation strategies to steer the sustainable use of biodiversity in this Himalayan region. Given the breadth of topics covered under the banner of biodiversity in this book, it can surely serve as a model for documentation of biodiversity in other regions of the world. The book will be of immense value to all those who, directly or indirectly, have to deal with biodiversity, including students, teachers, researchers, naturalists, environmentalists, resource managers, planners, government agencies, NGOs and the general public at large.