Silphium perfoliatum 第1页

STUDIES ON THE KARYOTYPE OF SILPHIUM PERFOLIATUM STUDIES ON GIEMSA C-BANDS AND CHROMOCENTERS OF SILPHIUM PERFOLIATUM POLLEN MOTHER CELL MEIOSIS AND POLLEN DEVELOPMENT IN SILPHIUM PERFOLIATUM L. WITH OBSERVATIONS ON SOME ABNORMAL POLLEN GRAINS