00282nam a2200097Ia 4500008004100000082002400041100002100065245005700086260003300143300000800176140113s9999    xx            000 0 und d  a576.12:582.5/9   L4  a"Stebbins, G.L."  aFlowering plants : Evolution above the species level  a1974bArnold EdwardcEngland  a399