Phiitoiiiii roi^fdplis of Botdvical Stiitllrs. 



35 



48. — ^T. & L.S. Stem of " Cucumis sativus," Cucumber. 



49. — T.S. Stem, " Helianthus annuus," Sunflower. 





Epidermis 

 Phloem elements. 

 Cambium ring. 



Xylem bundles 



Secondary bimdle. 

 Spiral vessels of primary 

 bundle. 



Ground tissue 



