ENQUIRY INTO PLANTS, I. x. 8-9 



plants. 1 2 It is peculiar to pot-herbs to have hollow 

 leaves, as in onion and horn-onion. 



To sum up, the differences between leaves are 

 shewn in size, number, shape, hollowness, in breadth, 3 

 roughness and their opposites, and in the presence or 

 absence of spinous projections ; also as to their 

 attachment, according to the part from which they 

 spring or the means by which they are attached ; 

 the part from which they spring being the root or a 

 branch or the stalk or a twig, while the means by 

 which they are attached may be a leaf-stalk, 4 or they 

 may be attached directly ; 5 and there may be 6 

 several leaves attached by the same leaf-stalk. 

 Further some leaves are fruit-bearing, enclosing the 

 fruit between them, as the Alexandrian laurel, which 

 has its fruit attached to the leaves. 



These are all the differences in leaves stated some- 

 what generally, and this is a fairly complete list of 

 examples. 



Composition of the various parts of a plant. 



1 (Leaves are composed some of fibre bark and flesh, 

 as those of the fig and vine, some, as it were, of 

 fibre alone, as those of reeds and corn. But moisture 

 is common to all, for it is found both in leaves and in 

 the other annual parts, 8 leaf-stalk, flower, fruit and so 

 forth but more especially in the parts which are 

 not annual 9 ; in fact no part is without it. Again it 

 appears that some leaf-stalks are composed only of 

 fibre, as those of corn and reeds, some of the same 

 materials as the stalks. 



8 /j.lffxos . . . &\\o has no construction ; probably a (correct) 

 gloss, taken from 1, 2, 1. 



i.e. while these are young, W. 



9 



77 



