PROPAGATION I5Y BUDS LAYKRAGK /I 



The trade uses the term "Dutch bulbs" to designate 

 those species which come commercially from Holland 

 (hyacinth, tulip, narcissus, etc.), blossom in early spring, 

 and after their leaves die down remain dormant until 

 the autumn, when they develop roots for the following 

 season's flowers. Hence the importance (1) of planting 

 them early in the fall so root growth will be strong 

 before winter sets in, and (2) of allowing the leaves to 

 die naturally so the bulbs will store ample food. 



105. Bulblet, bulbel, bulbil, bulbule, are terms concern- 

 ing which authors do not agree. For instance, one defines 

 "bulbels" as borne attached to the mother bulb, and bulb- 

 lets as borne above ground, generally in a leaf axil. 

 Another applies "bulbel" to the latter definition and says 

 that bulblet is synonymous with "bulbil." In this book 

 no distinction is made ; "bulblet" is most used. 



106. Separation is plant propagation by vegetative parts 



FIG. 63 CLASSES OF BULBS 



1. Scaly bulb of tiger lily, 2, solid bulbs (corns) of gladiolus and tuberose and 

 tunicate bulb of onion. 3, tunicate bulb of onion in cross section showing the 

 sheathing bulb leaves. 



