250 ANATOMY AM) PHYSIOLOGY OF PLANTS. 



fibres; the peculiarities of which, are more or less de- 

 pending on the plant by which they are produced. 



THE FLOWER-STALK OR PEDUNCLE. 



10. The flower-stalk is also a simple elongation of 

 the stem or branch, consisting of an epidermis, paren- 

 chyma, and bundles of longitudinal fibres, originating 

 in the stem or branch, and passing through the whole 

 extent of the parenchyma. 



STIPULES, FLORAL-LEAVES, THORNS, ETC. 



11. The remaining appendages, viz. stipules, floral- 

 leaves, thorns, prickles, tendrils, glands, and pubescence, 

 bear a greater or less agreement in structure, to the 

 parts from which they proceed. 



The intention of these parts are obviously not very clear in every 

 instance ; but with some, as the tendril, thorn, &c. there can be no 

 hesitation in drawing a conclusion. 



ON VEGETABLE FLUIDS. 



1. Having made our general remarks on the ap- 

 pendages to plants, and closed the subject of solid com- 

 ponents, we will now say a few words on the fluid con- 

 stituents; which are, the sap and proper juice. 



OF THE SAP. 

 2. Vegetable life, like the animal, cannot be sup- 



