170 



PRACTICAL BOTANY. 



parts of the same color ? Carefully remove some of the 

 plants from the earth on which they grew and wash off 

 the dirt. Compare the proximal and distal ends. Do 

 you find that the stem rises as the continuation of a true 

 root? Notice the numerous hairy rhizoids. What color 



FIG. 98. Portions of plants of Marchantia polymorpha showing the dicho- 

 tomous division. E shows two cases of the female inflorescence, cupules 

 on the left-hand branch, and rhizoids at the base ; M bears cupules. 



are they ? Where are they situated ? Observe the cu- 

 pules on some of the plants. What is their shape ? Are 

 they sessile or raised on stalks ? Notice in them the little 

 buds or gemmae. Draw specimens, showing as many of 

 the points observed us you can. 



Examine plants bearing male or antheridial branches. 



