Syngameon 



The sum total of species linked by frequent or occasional 

 Hybridization in nature; a hybridizing group of species; the 

 most inclusive interbreeding population. 



Syngamy 



The fusion of Gametes; the Fertilization of an egg* by a 

 sperm. 



Syngenetics 



The branch of Plant sociology dealing with the origin 

 and development of communities, cf. Succession, Community 

 dynamics. 



Synthesis Table 



See Association table. 



Synusia 



An aggregation of plants belonging to the same Life-form 

 having similar environmental requirements and occurring 

 in a similar Habitat, e. g., a layer of moss plants, a group 

 of floating herbs such as water lilies. 



Systematic Plant Sociology 



The branch of Plant sociology that deals with the de- 

 limitation and description of communities, followed by 

 grouping them into categories such as Sociation, Association, 

 Alliance, Order, and Class. 



Systematic Sampling 



A method of sampling in which the samples are dis- 

 tributed in a regular manner so that the sampling units will 

 be located as uniformly as possible over the area under 

 study. 



Systematics 



The science of classification; including the description, 

 naming, and grouping of organisms in categories such as 



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