Pliofniiiicrofiraplis of Bolctnical Sfmlies 



17. — T.S. Stem of "Equisetum telmateia. " 





Multinucleated cell. 



Primary nucleated 



tissue. 

 Isolated annular 

 vessels in inter- 

 cellular space. 



Nucleated cortical 

 tissue. 



18. — T.S. Stem of "Equisetum telmateia." 



Cell-wall. 



Protoplasm surround- 

 ing nucleus. 

 Nucleus. 



Strands of protoplasm 

 connecting nucleus 

 with cell-wall. 



Nucleus with nucleoli. 



