00392nam a2200145Ia 4500008004100000082001300041100001800054245006200072260003300134300000800167650002300175650001800198653001100216653001900227170901s1976    xx            000 0 und d  a580bB71  aHeywood, V.H. 0aBotanical SystematicsbAn Occasional Series of Monographs  aLondonbAcademic Pressc1976  a368  aBotanical sciences  aPure Sciences  aBotany  aClassification