02023nam a2200265 a 4500 AR-ReUNN 20260702154210.0 260630s1992 uk |||||||||||||||||eng 0-85198-802-4 eng Watson, Leslie 155366 Dallwitz, Michael J. 155367 The grass genera of the world Oxon CAB International 1992 1038 páginas 24 x 16 cm Contenido: 1. Introduction 2. Character list 3 Classification 4. Descriptions References and sources of data Appendix Index of names Modern taxonomic treatments of the grass family (Poaceae, Gramineae) recognize about 10000 species and as many as 785 genera. This book provides detailed descriptions of these 785 genera, the descriptions having been generated by computer from a taxonomic data bank. One of the authors has been engaged for some twenty years in compiling data and observations on grass genera, in order to investigate classificatory questions and to explore taxonomic applications of computer methods. The other has worked for a similar time on computer key-making, and has developed the DELTA system for comprehensive representation and manipulation of taxonomic descriptions. They have devised a grass generic character list to cover all aspects of variation in grasses. In this book this list comprises 496 characters, dealing with nomenclature , general morphology, leaf anatomy and physiology, biochemistry, haploid and 2cDNA values, fruit and embryo structure, seedling form, cytology, intergeneric hybrids, phytogeography and distribution, ecology, pathogens, classification and economic aspects. The work is undoubtedly a definitive reference work, essential for all those with a serious research interest in grasses. Gramineae 115115 Poaceae 120574 Taxonomía 6308 Sistematica 123022 LIB (IBONE)41155 239636 0 0 0 1 IBONE IBONE GEN 2007-10-08 0 582.5-grm WAT ej.1 62.01-003233 LIB 0 0 0 0 IBONE IBONE GEN 2007-10-08 0 582.5-grm WAT ej.2 62.01-009344 LIB 239636 239636 AR-ReUNN spa AR-ReUNN aacr2 0 0 0 1 IBONE IBONE GEN 2007-10-08 0 582.5-grm WAT ej.1 62.01-003233 LIB 0 0 0 0 IBONE IBONE GEN 2007-10-08 0 582.5-grm WAT ej.2 62.01-009344 LIB