THE BRYOPHYTA OF ICELAND 



529 



green and rectangular, 0.018 mm. broad and 0.070 mm. long, in its upper half, 

 0.010 mm. broad and 47 times as long, with sinuous primordial utricle. 



Fig. 17. AmMysteginm trichopodinw (Schult/). Habit (X 3). 



a 



Fig. 18. Ambhjsteginm trichopodinm (Schultz) Br. our. a. Stem-leaves and b, branch-leaves 



(X20); c, leaf-cells near margin (X120). 



