* % 



M 



} 



Fig. 93. Chromosomes of Asplenium in sections, x 1000. a. Mitosis in a root of A. viride Huds. For 

 explanatory diagram see Fig. 94. b. The same in A. septentrionale (L.) Hoffm. to show higher 

 chromosome number. For explanatory diagram see Fig. 94. c. Meiosis in A. marinum L. For 

 explanatory diagram see Fig. 91. d. The same in A. Trichomanes L. to show higher chromosome 

 number. For further details see Fig. loi. 



^»1 





^^TV^"**^ 



,V1» 



<?/7= /<? Asplenium ?n ^^ 14-4 



A- viride A. sep/^en/-riona/e 



Fig. 94. Explanatory diagrams to Fig. 93 a, h. x 2000. 



h 

 Fig. 95. Meiosis in tetraploid species o[ Asplenium, permanent acetocarmine. x 1000. n=i2. 



a. A. ruta-muraria L. b. A. lanceolatum Huds. 



