34 



FOUNDATIONS OF BOTANY 



sedges, the grasses, and some other plants, there is but one 

 cotyledon. Upon these facts is based the division of most 

 flowering plants into two great groups : the dicotyledonous 

 plants, which have two seed-leaves, and the monoeotyledon- 

 ous plants, which have one seed-leaf. Other important 

 differences nearly always accompany the difference in 

 number of cotyledons, as will be seen later. 



46. Tabular Review of Experiments. — Make out a 

 table containing a very brief summary of the experiments 

 thus far performed, as follows : 



Number 



OF 

 EXPEBIMEHT 



Object 



SO0GHT 



MATERIAiS 

 AKD 



Apparatus 



Opeka- 



TIONS 

 PERFORMED 



Eesults 



Inferences 



47. Review Sketches. — Make out a comparison of the 

 early life histories of all the other seedlings studied, by 

 arranging in parallel columns a series of drawings of each. 



