00879nam a2200301 a 450000100080000000500110000800800410001910000160006024500910007626000590016730000110022649000700023765000130030765000170032065000110033765000220034865000140037065300180038465300210040265300090042365300240043265300100045665300250046665300190049170000200051070000190053070000280054913859132018-10-24       1992    bl uuuu      00u1 u    #d1 aGUNN, C. R.  aFamilies and genera of spermatophytes recognized by the Agricultural Research Service.  aWashington: USDA - Agricultural Research Servicec1992  a500 p.  a(USDA - Agricultural Research Service. Technical Bulletin, 1796).  ataxonomy  aNomenclatura  aPlanta  aRecurso Genético  aTaxonomia  aEspermatofito  aGenetic resource  aGRIN  aInformation network  aPlant  aRede de informação  aSpermatophytes1 aWIERSEMA, J. H.1 aRITCHIE, C. A.1 aKIRKBRIDE JUNIOR, J. H.