134 



REPRESENTATIVE PLANTS 



term tissue ? What tissues are found in the liverwort ? 

 How is the liverwort more complex than the algae? 



Drawings. Make the following drawings from the fresh 

 or mounted material : — 



1. Thalli of different sizes and forms, showing cupules, 



if present. 



2. Surface (m) to show stomate areas. 



3. Epidermis {l])) to show stomate structures. 



4. Rhizoids (Ip). 



5. Antheridial and archegonial thalli and branches. 



6. Gemmae {Ip). 



Details of reproduction may be added if observed. 



7. Section of thallus {Ij)). 



Type 3. The Mosses ^ 



General statement about habitat. Mosses are so generally- 

 known that the student ought to be able to answer many of 

 the following questions about their place and manner of 

 growth. Recall all the situations in which you have seen 

 mosses growing and enumerate the different forms by some 

 brief descriptive characteristics of stem and leaves. Are 

 they shade or sun lovers ? Observe the variation in color. 

 What habit do they all have in regard to their growing to- 

 gether ? How do they vary in size and branching ? Tabu- 

 late the results of your observation on mosses, using the 

 form given below: 



No. 



Whkrk 

 Grown 



Size 



COLOF 



Branch- 

 ing 



Shade 



OR Sun 



Leaf- 



1NE88 



With, 



Without 



Fruit 



1 True mosses. 



