GLOSSARY. 



Adventitious. Said of buds which appear in unusual places, 

 especially of those which are caused to appear on roots 

 and stems by any method of pruning or other treatment. 



Air-layering. See Pot-layering. 



Bark-grafting. A kind of grafting in which the cions are 

 inserted between the bark and wood of a stub ; often, 

 but erroneously, called crown-grafting. Fig. 135. 



Bottle-grafting. A method of grafting in which a shred of 

 bark from the cion, or a portion of the bandage, is 

 allowed to hang in water (generally in a bottle, whence 

 the name), for the purpose of supplying the cion with 

 moisture until it has united with the stock. Pages 112, 

 132. 



Bottom heat. A term used to designate the condition that 

 arises when the roots of plants, or the soil in which they 

 grow, are exposed to a higher temperature than that of 

 the air in which the aerial portions of the same plants 

 are growing. 



Breaking. Said of buds and cions which start (or break} pre- 

 maturely. Page 101. 



Brick (of mushroom). See Spawn. 



Bud. As used by propagators, a bud comprises the leaf-bud 

 (or rarely a short spur) and a bit of bark or wood to 

 which it is attached. Figs. 85, 96, 99, 100. 



Budding. The operation of applying a single bud to the 

 surface of the growing wood of the stock, with the in- 

 tention that it shall grow. The bud is usually inserted 

 underneath the bark of the cion, and is held in place by 

 a bandage. Budding is a part of the general process of 

 graftage. Called inoculation in old writings. Page 94. 

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