Glossary. 201 



Berry. In botany, and properly, a separate fruit which is pulpy 

 and juicy throughout, as the grape, currant, tomato. The word 

 is commonlj^ employed to denote any soft fruit or fruit-like part 

 which is borne upon a woody or perennial plant. The raspberry 

 and blackberry are collections of little Iruits. 



Biennial {Adj.). Persisting two years. As a rule, biennial plants 

 do not blossom until the second year. 



Bigeneric half-breed. The product of a cross between varieties of 

 species belonging to different genera. 



Bigenric hybrid. A hybrid between species of different genera ; 

 bigener. 



Blight. The dying without apparent cause of the tenderer parts 

 of plants, especially of the leaves, flowei's and young fruit; 

 as pear-blight. 



Botany. The science of plants. 



Bottle-grafting. A modification of whip-grafting by which a 

 heel of the scion is conducted into a bottle of water to supply 

 temporary nourishment. 



Bottom heat. Heat applied underneath plants by artificial 

 means. 



Bract. A much reduced leaf. Bracts are usually present about 

 the inflorescence. 



Break. A radical departure from the type. Ordinarily used in 

 the sense of sport, but in its larger meaning- it refers to the per- 

 manent appearence of apparently new or very pronounced 

 characters in a species. 



Bud. A bud which is inserted in a plant with the intention that 

 it shall grow. 



Budding. The operation and practice of inserting a bud in a 

 plant with the intention that it shall grow. 



Bulb. A large, more or less permanent leaf-bud, usually occu- 

 pying the base of the stem, and emitting roots from its lower 

 portion. Bulbs are of two leading sorts ; scalj^, 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 abQve ground, as in the 

 axils of leaves, in the inflorescence, etc. 



Bulbo-tuber. A corm. 



