GLOSSARY. 279 



when composed of narrow and mostly loose scales, as in 

 the lily ; laminated or tunicated, when composed of more 

 continuous and closer-fitting layers, as in the onion. 



Bulbel. A small bulb borne about a mother-bulb, as in some 

 bulbous irises and some onions ; bulbule. 



Bulblet. A small bulb borne entirely above ground, as in the 

 axils of leaves, in the inflorescence, etc. 



Bulbo-tuber. A corm. 



Bulbule. A bulbel. 



Bush. A small woody plant having no central trunk or stem ; 

 shrub. 



Bush-fniit. Small fruits, as the currant, gooseberry, rasp- 

 berry, and the like. 



Callus. The new and protruding tissue which forms over a 

 wound, as over the end of a cutting. 



Calyx. The outer envelope of the flower. The parts, when 

 distinct, are called sepals. In apples, pears, etc., part of 

 the calyx persists on top of the fruit. 



Cambium. The layer of new tissue which lies underneath the 

 bark. It is usually thin and more or less mucflaginous in 

 spring and early summer. 



Cane. A young growth of hard-wooded plants. Usually 

 applied to ripened or hardened shoots a year or less old. 



Cantaloupe. A class of muskmelons characterized by firm 

 and warty or scaly rinds. 



Capsule. A dry seed-vessel which splits open at maturity ; 

 I)od. 



Carbon dioxide. A gas composed of 1 atom of carbon to 

 2 of oxygen. Carbonic acid gas ; it is heavier than air. 



Carbonic acid. Carbon dioxide. 



Carpel. A simple pistil, or one of the divisions of a com- 

 pound pistil. 



Cavity. In descriptions of apples and similar fruits, the 

 depression about the stalk or stem. 



Chlorophyl. The green coloring matter of plants. 



Cion. See Scion. 



Cleft-graft. A sort of grafting in which the scion is cut 



