Fig. 5. Oligotrichum parallelum. 

 1 = Antheridial plant dry; d = antheridial disk, termination of a year's growth, 

 X I 2 = Moist plant with capsule, X i. 3 = Capsule with Ud, X S- 4 - Peri- 

 stome showing wide membrane and doubling of teeth. X 150. 5 = Leaf showmg 

 lamella, on upper surface, X i5- 6 = Leaf showing teeth and lameU^ on back, X 15 

 7 = Leaf-tip X 65 8 = Cross section of leaf showing lamellae, X 65. 9 - t^ross 

 section of leaf margin, X 250. 10 = Cross section of a few lamella, sho^v^ng smooth 

 and unthickened marginal cells, X 250. 



