00322nam a2200133 a 450000500170000002000180001708200160003510000230005124500220007425000120009626000360010830000250014450000190016920251203112327.0  a9780123743800  a580.12bSIM  aSimpson, Michael G  aPlant systematics  a2nd ed.  aSingaporebAcademic Pressc1953  axii,740p.c28cm.bHP  aincludes index