8 DESCRIPTION OF 



Flower as well. The leaves of the Yew-tree hare 

 but one nerve down the centre ; but we know by the 

 growth of the trunk of the tree, and its branches, that 

 it belongs to the First Class : for Monocotyledons 

 never branch. 



There are a few exceptions also, to the Monocotyle- 

 dons having but one Cotyledon. There is, with some 

 plants, a second Cotyledon, but it is always alternate, 

 and never forming a pair with the first, as is the 

 character of all Dicotyledons 



We shall find a difference of arrangement in the 

 Flowers of the two classes also ; but here too, a few 

 exceptions may be found. 



In the First Class, the different parts of a FLOWER, 

 (Calyx, Petals, Stamens, &c.,) are divided into two, 

 four, or five pieces ; or their doubles, (four, eight, ten, 

 fifteen, twenty, &c.), scarcely ever into three, six, 

 or nine, or their doubles. And in the Second Class, 

 their parts are [divided into three, six, or nine, &c., 

 and scarcely ever in even numbers, or fives. The 

 Flowers are also without any distinct Calyx. PI. I. 

 A 4. B 4. 



Many BOOTS of each Class are too similar, to the 

 unpractised eye, to Jbe any guide ; but the Bulbous 

 Root is so differently formed, that we will examine 



