BARKS. 



195 



PLATE LXXXV. 



FIG. 95. Powdered Cinnamon Bark (x 240). 



a, Starch grains. 



cr, Minute crystals of calcium oxalate. 



fl, Bast fibres with very thick walls, entire or broken. 



go, Secretion cells. 



I, I', Bast in longitudinal and transverse section. 



pc, Cortical parenchyma. 



rrn, r'm', Medullary rays in radial and tangential section. 



sc, Sclerenchymatous cells. 



vg, Sieve-tubes, collapsed. 



02 



