Bulletin Torrey Botanical Club. 



Plate XV. 



Fig*. 1 c . 



Fi 3\ 1 



ol> 



Fig^8 





Fi3-. 



Fio^ ^CL, 



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o 





fi g^ 7 it^ 



F I <- 3 



Y\^.-]Z 



Fig' 4 



Development f>F the Cortex in Chara 



Fio. 5 



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