LEAVES. 



ft! 



PLATE XXIV. 



FIG. 34. Powdered Buchu Leaves (x 240). 



cr, Calcium oxalate in rosettes. 



ei, Lower epidermis with crystals of hesperidin. 



en, Neural epidermis. 



ep, Epidermis of petiole. 



es, Upper epidermis. 



f, Pericyclic fibres. 



f , Lignified cells from veinlets. 



h, Hesperidin. 



m, Mesophyll. 



p, Protective hairs. 



pa, p'a', Palisade cells. 



tf , Cortical tissue of midrib. 



v, Vessel. 



