na INLIS000000000060549 20230703082934 0010-0723000037 ta 230703 g 0 eng 582.4 582.4 JOH p JOHANSEN, Donald Alexander Plant embryology : embryogeny of the spermatophyta / Donald Alexander Johansen Waltham : Chronica Botanica Company, 1950 xvi, 305 p. : ill. ; 27 cm. Index: p. 299-305 A new series of plant science books volume XXIV SPERMATOPHYTA PLANT EMBRYOS 1782 41/60