go MOSS. 



I. Draw the upper part of the capsule showing the 



teeth and epiphragm. 



Divide the capsule longitudinally, and notice 

 m. The axial column running through the center, the 



columella, the expanded apex giving rise to the 



epiphragm. 

 n. The cavity between the columella and wall of the 



capsule, either empty or filled with a powder, the 



spores. 

 o. Make a diagram of the section. 



MINUTE ANATOMY. 



A. THE RHIZOIDS. Under high power, notice 



1. The straightness, uniformity of diameter, and mode 

 of branching. 



2. The character of the lateral walls, and the position and 

 direction of the cross-partitions, if any. 



3. Draw. 



4. Notice the manner in which some of the rhizoids are 

 coiled around each other, forming ropes. 



B. THE PROTONEMA. Notice 



1. The arrangement of the cells. 



2. The thinness of the walls, and position of the cross- 



partitions. 



3. The contents. 



4. Draw. 



C. THE STEM. In a transverse section taken from the 

 lower scaly part of the stem, notice 



i. The three regions. 



a. The peripheral, with the cell walls reddened. 



