14 E The Canadian Arctic Expedition, 1913-18 



DESCRIPTION OF PLATE. 



Barbula Johansenii, n. sp. 



Fig. 1. Plant X 19. 



9 



Outer perichaetial leaf X 32. 



3. Stem-leaf X 32. 



4 & 5. Cross sectipns of lower and middle parts of stem-leaf X 210. 



6 & 7 . Cross sections of upper part of leaf and excurrent costa X 210. 



8 & 9 . Inner perichaetial leaves X 32. 



10. Apex of costa broken oH and starting new growth X 50. 



11 . Basal cells of stem-leaf X 210, 



12. Median cells X 245. 



Chrysohypnum arcticum, n.sp. 

 Fig. 13. Plant X 6. 

 14&15. Stem leaves X 19. 



16 . Branch leaf X 19. 



17. Basal cells of leaf X 210. 



18. Median fcells X 245. 



