96 



P. C. Miller et al. 



100 200 300 



Percent Water Content 



400 



FIGURE 3-16. The relationship between water 

 content and leaf resistances in three moss species: 

 Pogonatum alpinum (P. a.) from Eagle Creek, 

 Alaska (Alpert and Oechel, unpubl.); Dicranum 

 elongatum (D.e.) from Barrow; and Calliergon 

 sarmentosum (C.s.) from Barrow. (After Oechel 

 and Sveinbjornsson 1978.) 



FIGURE 3-17. The seasonal course of 

 the tissue water contents in four moss 

 species: Calliergon sarmentosum (C.s.), 

 Dicranum elongatum (D.e.), Dicranum 

 angustum (D.a.), and Pogonatum al- 

 pinum (P. a.). (After Oechel and Svein- 

 bjornsson 1978.) 



