CORMS AND BULBS. 



273 



PLATE CXXL 



FIG. 131. Powdered Colchicum Corm (x 240) 



a, a', Starch in simple and compound grains. 



e, Epidermis. 



I, Bast. 



pa, Parenchyma. 



pc, Fragment of cell wall. 



tr, Fragments of vessels. 



