MINUTE ANATOMY OF ROOT AND SHOOT 211 



X. The Minute Anatomy of Root and Shoot 



36. In the Balsam, after observing the features of 

 the gross anatomy, study carefully the minute 

 anatomy of the shoot and root. 



I. The epidermal or protective system. 



(1) Is it continuous and uniform over the 



entire plant ? 



(2) Is it removable from the underlying 



tissues ? 



(3) Is it smooth or has it appendages ? 



(4) Do you find stomata or any equivalent 



for them ? 



(5) Is there any green in the epidermis ? 



II. The cortical or starch-making system. 



(1) Is it continuous over the entire plant? 



(2) Is it evenly distributed, and, if not, 



where is the green most intense ? 

 III. The fibro-vascular or conducting and strength- 

 ening system. 



(1) Is it continuous through the entire plant ? 

 Place a spray in the red liquid to aid 



in tracing its course. 



(2) In what order are the bundles arranged 



in the stem ? 



(3) How are they arranged in the petioles ? 



(4) How are they arranged in the leaf? 



(5) How do they end in the leaf ? 



