MORPHOLOGY OF ROOTS, STEMS, AND FOLIAGE-LEAVES. 93 



These conclusions may be conveniently shown in a 

 tabular form as follows : 



PHANEROGAMS. 



I 



I 

 ANGIOSPEBMS. GYMNOSPERMS. 



I I 



DICOTYLEDONS. MONOCOTYLEDONS. 



CHAPTER XVII. 



MORPHOLOGY OF ROOTS, STEMS, AND FOLIAGE-LEAVES OF 

 PHANEROGAMS. 



130. Before proceeding with the examination of other 

 selected plants illustrative of other divisions of the 

 vegetable kingdom, we shall present in a systematic way 

 the more important facts in connection with the Phanero- 

 gams, dealing in turn with the organs of vegetation 

 the root, the stem, and the foliage-leaves and then with 

 the organs of reproduction as displayed in the flower. 

 The various forms assumed by these organs, whether in 

 different plants or in different parts of the same plant, 

 will have our attention, as also their various modes of 

 arrangement. We shall consider, also, rather more 

 minutely than we have hitherto been able to do, the 

 development of the seed from the ovule, the process of 

 pollination and of fertilization, and the subsequent 

 germination of the seed and development of the new 

 plant. To this study of forms the name Morphology 

 has been given. It need hardly be said that effective 

 morphological work can only be accomplished by actual 



