Fig. 87. History of the Bluebell Bulb. a, b, c, d, germina- 

 tion of the seed and seedlings ; e, young bulb ; f, g, h, i, l, different 

 stages of elongation of the bulbs and development of contractile 

 roots ; j, k, bulbs again beginning to elongate ; c.r, contractile 

 root; cr.sc, contractile root-scar; 5, slit in tubular cotyledon; 

 M, mature flowering bulb ; l.sc, leaf-scar. 



