Annotated checklist indian pteridophytes (14 résultats)

Etat : New. pp. 450.

Etat : New. pp. 450.

Etat : New. pp. 450.

Hardcover. Etat : New. With the completion of the third and final volume, the decade-long project to revise and catalogue Indian Pteridophytes (ferns and allies) have reached its conclusion. The last such project attempted was Beddome's Handbook of ferns of 1883-1892, where genera and species treated were almost unrecognizable compared to today. In these volumes, nomenclatural details, types, full synonymy, Indian and global distribution, IUCN status, and often descriptive comments are given for 1135 species (including 42 exotics) and 53 further subspecies, 1145 indigenous taxa, in India. Hybrids are also treated. The classification and emphasis of the books are based on wider taxonomic considerations and recognisable taxa, over and above purely molecular-cladonomic schemes. Notes and corrections of previous reports are made, particularly in the Appendices and under excluded species. Nearly 600 clear photographs, often of rare and critical species not previously illustrated, are provided showing the important characters for recognition. Part 1 covers the families from Lycophytes through Thelypteridaceae, in taxonomic order. Part 2 covers the large, advanced and critical families from Woodsiaceae to the end of Dryopteridaceae. Part 3 deals with some families of the general dryopteroid lineage, nearest to tectarioid ferns, Lomariopsidaceae to Oleandraceae. These are followed by Davalliaceae, which appears to represent a transition from Dryopteridaceae towards the advanced, large and critical, mainly epiphytic polypodioid families, Polypodiaceae and Grammitidaceae. The checklist is completed with the isolated heterosporous water-fern families, Azollaceae and Salviniacaeae, of a rather unclear relationship, but probably arising from near Schizaeaceae and Lygodiaceae, and currently placed after those families, though not dealt with in Part 1, it is followed by an Appendix with corrections or additions to Parts 1 and 2 and corrections and comments concerning some recent publications relating to Indian ferns. In addition to aiming to produce a detailed and comprehensively accurate account of these plants, many new revisions at species and some at a generic level have also been made in the book itself while setting out to maintain the important balance between molecular and morphological concepts of taxa. The detailed and careful, up-to-date research that went into the preparation of this work is unprecedented in South Asia, It is hoped that stability of names and concepts along with an indication of modern directions of research in various groups may result from the present work, which is intended to provide a comprehensive basis for present and future fern-study, cataloging and identification relevant to the fern-flora of the whole of Asia.…

Hardcover. Etat : New. 1st Edition. Contents: Foreword. Introduction. Taxonomic treatments: 1. Lycopodiaceae. 2. Selaginellaceae. 3. Isoetaceae. 4. Equisetaceae. 5. Psilotaceae. 6. Ophioglossaceae. 7. Marattiaceae. 8. Osmundaceae. 9. Plagiogyriaceae. 10. Dipteridaceae. 11. Gleicheniaceae. 12. Lygodiaceae. 13. Schizaeaceae. 14. Marsileaceae. 15. Marsileaceae. 16. Cyatheaceae. 17. Dicksoniaceae. 18. Hymenophyllaceae. 19. Dennstaedtiaceae. 20. Lindsaeaceae. 21. Pteridaceae. 22. Vittariaceae. 23. Aspleniaceae. 24. Thelypteridaceae. Ferns and fern-allies are especially well represented in India and are conspicuous almost everywhere by their beautiful and intricately varied foliage. Yet this fascinating group of plants is often rather widely misunderstood due to their great complexity in the area and to a considerable degree of variation, with many erroneous accounts having been published on them in the past. In addition, the last published book covering the whole of India accurately was a Nineteenth Century work, and since then nearly all names of genera and even the majority of species have changed, while some more recent Census-lists have been beset by inaccuracies and errors to the point of being unreliable. Ongoing modern research both in India and abroad has revealed the existence of many more species than were known before, while a huge number of names in use in various works have proved to be synonyms, mere redescriptions of species already known. The present work in two parts has incorporated and evaluated modern research and has set out the whole spectrum of Indian ferns as known today, detailing their types, synonyms and carefully revised distribution as researched both in the field in and around the region, and in the world's herbaria, involving re-identification and verification of specimens over many decades of research by the specialist authors. Notes concerning misidentifications or taxonomic and nomenclatural problems are provided in situ under each species or genus. Part 1 covers the families from Lycophytes through to Thelypteridaceae, in taxonomic order, and the forthcoming part 2 covers the large advanced and critical families from Woodsiaceae to the end of the taxonomic series. It is planned subsequently to present a descriptive volume followed by a photographic volume to complete the set. In addition to aiming to produce a detailed and comprehensively accurate account of these plants, many new revisions at species and some at generic level have also been made in the book itself, while setting out to maintain the important balance between molecular and morphological concepts of taxa. It is hoped that stability of names and concepts along with indication of modern directions of research in various groups may result from the present work, which is intended to provide a comprehensive basis for present and future fern-study, cataloguing and identification relevant to the fern-flora of the whole of Asia (jacket). …

Hardcover. Etat : New. 1st Edition. Contents: 1. Introduction. 2. Classification. 3. Taxonomic treatments: i. Woodsiaceae. ii. Onocleaceae. iii. Blechnaceae. iv. Dryopteridaceae. Appendix: Corrections and additions to Part I. Nomenclature of Christenhusz, Fay & Byng (2018). Photographs. Addenda. Index. Ferns and fern-allies are especially well represented in India and are conspicuous almost everywhere by their beautiful and intricately varied foliage. Yet this fascinating group of plants is often rather widely misunderstood due to their great complexity in the area and to a considerable degree of variation, with many erroneous accounts having been published on them in the past. In addition, the most recent published book covering the whole of India accurately was a Nineteenth Century work, and since then nearly all names of genera and even the majority of species have changed, while some more recent Census-lists have been beset by inaccuracies and errors to the point of being unreliable. Ongoing modern research both in India and abroad has revealed the existence of many more species than were known before, while a huge number of names in use in various works have proved to be synonyms, mere redescriptions of species already known. The present work, published in three parts, has incorporated and evaluated modern research and has set out the whole spectrum of Indian ferns as known today, detailing their types, synonyms and carefully revised distribution as researched both in the field in and around the region, and in the world's herbaria, involving re-identification and verification of specimens over many decades of research by the specialist authors. Notes concerning misidentifications or taxonomic and nomenclatural problems are provided in situ under each species or genus. Part 1 covers the families from Lycophytes through to Thelypteridaceae, in taxonomic order, and part 2 covers the large advanced and critical families from Woodsiaceae to the end of the Dryopteridaceae. Part 3, in advanced preparation, will cover the last families including Lomariopsidaceae, etc. Davalliaceae, the complex Polypods and Grammitids and Salviniaceae / Azollaceae, and is expected in early 2019. It is planned subsequently to present a descriptive volume followed by a photographic volume to complete the set. In addition to aiming to produce a detailed and comprehensively accurate account of these plants, many new revisions at species and some at generic level have also been made in the book itself, while setting out to maintain the important balance between molecular and morphological concepts of taxa. It is hoped that stability of names and concepts along with indication of modern directions of research in various groups may result from the present work, which is intended to provide a comprehensive basis for present and future fern-study, cataloguing and identification relevant to the fern-flora of the whole of Asia. (jacket). …

Etat : New. pp. 564.

Etat : New. pp. 564.

Hardcover. Etat : New. NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

Etat : New. pp. 564.

Etat : New.

Etat : New.

Etat : New.

Board book. Etat : Like New. LIKE NEW. SHIPS FROM MULTIPLE LOCATIONS. book.