126 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



longest internodes about 5 cm. At this stage the shoots began to 

 perish. The stems seemed to be apogeotropic and exhibited distinct 

 nutating curvatures. The leaves were expanded but extremely small, 





i 



^ 



Fig. 82. Menispcnnum Canadensc. yl, epidermis of normal stem ; 5, epidermis 

 of etiolated stem. Etiolated culture. 



Standing out from the stem at an angle of 50*^ to 60°, the lower ones 

 perishing before the stems had reached full length. It is to be noted 



