PAET I. 



STASIMORPHT.i 







Deviations from the ordinary form of organs arising 

 from stasis or arrest of development are included under 

 this heading. 



There are many cases in which the forms proper to 

 a. juvenile condition of the plant are retained for a 

 much longer period than ordinary, or even throughout 

 the life of the individual growth goes on, but " develop- 

 ment " is checked. Such conditions may even be pro- 

 pagated by seed or bud. It is a very general thing 

 for botanists to consider these cases as reversions to a 

 simpler, primitive type, and this may be so ; but on the 

 other hand, they may be degenerations from a complex 

 type, or they may have no direct relation to any ante- 

 cedent condition. Stasimorphic changes affecting 

 principally the relative size of organs such, for in- 

 stance, as the non-development of internodes, or the 

 atrophy or suppression of parts will be found mentioned 

 in the sections relating to those subjects. In the 

 present part those alterations which affect the form 

 of organs principally are treated of. 



