Fig. 232. — Development of the stomata. A-C, Surface views of very young stomata of .£■. tclmatcia, 

 x6oo ; D, section of an older stoma oi E. liinosuin, X700 (after Strasburger) ; E, outer surface of 

 a complete stoma of E. telinateia, showing the silicious nodules upon the epidermal cells ; F, 

 inner side of the same, showing the silicious bars upon the inner walls of the guard cells ; v, v, 

 accessory cells ; s, guard cells. 



