000			02023nam a2200265 a 4500
003			AR-ReUNN
005			20260702154210.0
008			260630s1992 uk |||||||||||||||||eng
020			_a0-85198-802-4
041	0		_aeng
100	1		_aWatson, Leslie _9155366
700	1		_aDallwitz, Michael J. _9155367
245	1	4	_aThe grass genera of the world
264		1	_aOxon _bCAB International _c1992
300			_a1038 páginas _c24 x 16 cm
500			_aContenido: 1. Introduction 2. Character list 3 Classification 4. Descriptions References and sources of data Appendix Index of names
520			_aModern 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.
650		4	_aGramineae _9115115
650		4	_aPoaceae _9120574
650		4	_aTaxonomía _96308
650		4	_aSistematica _9123022
942			_cLIB
035			_a(IBONE)41155
001			239636
999			_c239636 _d239636
040			_aAR-ReUNN _bspa _cAR-ReUNN _eaacr2