,001 •l^ 





'iU'i^\ 



I 



Fig. 137. Explanatory diagram to Fig. 138 with the 74 pairs in black 

 and the 37 univalents in outline, x 2000. 





m 





n 





* -*. -.* ♦ 



Fig. 138. Meiosis in pentaploid Polypodium, from a wild hybrid from Holland, permanent acetocarmine. 



X 1000. For explanatory diagram see Fig. 137. 



