Page 27 – Raphides
Fig. 24 . Raphides. A. Longitudinal section of a portion of a stem showing the raphides, enclosed in a mucilagenous sac, within a cortical cell which is larger than those of the ground tissue. X200. B, Transverse section of a portion of a stem to show the raphides in a cross section. Notice the greater diameter of the cell in which the raphides appear, as compared to that of the cells of the surrounding ground parenchyma, and the sac enclosing the crystals. X800.