246 EXPLANATION CF 



AWN ; a slender, stiff, sharp substance, growing from 

 the husks of some grasses and other flowers ; as in 

 Oats, Barley, and Teasel. 



B 



BARK ; the outermost covering of the roots, stems, and 

 branches of vegetables. It is generally divided into 

 three parts ; the Cuticle or skin, the Outer, and the 

 Inner bark. 



BERRY ; a pulpy seed-vessel, without valves, in which 

 the seeds are surrounded with the pulp : as in the 

 Gooseberry, and common Holly. [Plate 7.] 



BIENNIAL ; living two years, and then perishing. In 

 biennial plants, a root and leaves are formed during 

 the first year, and the flower and fruit are completed 

 in the second. 



BLOSSOM, or Corolla; that part of a flower which, 

 in general, is coloured, and consists of one or more 

 petals. [Plate 1.] 



BORDER ; the upper spreading part of a blossom of one 

 petal : as in Germander Speedwell. [Plate 3.] 



BRACTEA, or floral leaf; a leaf different from the other 

 leaves in shape and colour : generally situated on 

 the same stalk with the flower and fruit. 



BRISTLES ; strong, stiff, roundish hairs. 



BUD ; a scaly or leafy receptacle of leaves or flowers ; 

 on the stem or its branches. It is supposed to pro- 

 tect its contents from cold ; for most plants in cold 

 countries have buds, but very few in hot climates. 



BULB, or T the part, commonly round and 



BULBOUS-ROOT ; J fleshy, from which the stem of 



