
Fig. 5. Oligotrichum parallelum. 
1 = Antheridial plant dry; d = antheridial disk, termination of a year’s growth, 
X 1. 2 = Moist plant with capsule, X 1. 3 = Capsule with lid, X 5. 4 = Peri- 
stome showing wide membrane and doubling of teeth, X 150. 5 = Leaf showing 
lamelle on upper surface, X 15. 6 = Leaf showing teeth and lamelle on back, X 15 
7 = Leaf-tip. X 65. 8 = Cross section of leaf showing lamelle, X 65. 9 = Cross 
section of leaf margin, X 250. 10 = Cross section of a few lamellae showing smooth 
and unthickened marginal cells, X 250. 
