GLOSSARY 



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Stoma (pi. Stomata): an epidermal organ for regulating the communi- 

 cation between green tissue and the air. 



Strobilus : a cone-like cluster of sporophylls. 



Style: the stalk-like prolongation from the ovary which bears the 

 stigma. 



Symbiont: an organism which enters into the condition of symbiosis. 



Syjibiosis: usually applied to the condition in which two different 

 organisms live together in intimate and mutually helpful relations. 



Sympetalous : applied to a flower whose petals have coalesced. 



Syncarpous : applied to a flower whose carpels have coalesced. 



Zoospore : a motile asexual spore. 



Zygote : the sexual spore resulting from conjugation. 





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