Plii>t()ii!icnitlrc(pli.\ of Ijiiltiiiicdl Sfiiihc 



18— TS. — Through Vascular bundle of Rachls, of Pteris aquilina. 





^ ^^ Primary ground tissue. 



'^\i~i.\'l^/y^-'''iC'' Hndodermis. 

 i^J^rVr-y.^yj.'-- Bast sheath. 



'r^,-^ '_':'■ ' ■■'.:' SpiraPv 



;3ast elements, 

 essels. 





hr'S. X'^'-^J-/ Scalar 



iform vessels 





16 -L.S. -Through Vascular bundle of " Rhizome," of Pteris aquilina. 



Primary gruLind tissLie. 

 L I ; ' 1 I Sclerenchyma sheath 



Ty-"; Bast elements. 



t- Scalariform vessels. 



