00300nam a2200109Ia 4500008004100000082001900041245005100060260003300111300001000144600001600154650002000170130903s9999    xx            000 0 und d  a581.9(091)  J0  aAn introduction to historical plant geography.  aUSAbChronica Botanicac1950  a224p.  aWulff, E.V.  aPlant Geography