AND ITS DIFFERENT KINDS. 105 



mant, whuh season therefore is proper for 

 their transplantation. After they have begun 

 to throw out new fibres, it is more or less 

 dano-erous, or even fatal, to remove them. 

 Very young annual plants, as they form 

 new fibres with great facility, survive tran.s- 

 plantation tolerably well, provided they re- 

 ceive abundant supplies of water ])y the 

 leaves till the root has recovered itself. 



Botanists distinouish several different kinds 

 of roots, which are necessary to be known, 

 not only for botanical purposes, bivt as being 

 of great importance in agriculture and gar- 

 dening. The generality of roots may be 

 arrano'ed under the followin"- he^ads. 



.^^^. ^...v.»v.x C..^ .v...^.,...^ 



1. Radivjibrosa, Jig. 5. A Fibrous Root. The 

 most simple in its nature of all, consisting 

 only of fibres, either branched or undivided, 

 v.hich convey nourishment directly to the 

 basis of the stem or leaves. Many grasses, 

 as Voa annua, Engl. Bof, t. 1141, and the 

 greater part of annual herbs, have this kind 

 of root. The radical fibres of grasses that 

 crow in loose sand are remarkably downv, 

 possibly tor the purpose cf fixing them moj-e 



