SEEDS. 



121 



PLATE LI. 



FIG. 61. Powdered Colchicum Seeds (x 240), 



a, Grains of starch from the thickened part of seed. 



alb, Cells of endosperm. 



a'l'b', Fragments of same, 



ep, Cells from thickened part of seed. 



te, Outer layer of seed-coat. 



ti, Inner layer O f same, 



tm, Middle layer of same, 



tr, V, Vessels, etc., from raphc. 



