SHOOTS 8 / 



rangement is Ter_v different from tliat fonml in Monocotyle- 

 dons. It will be noticed how similar in general api^earance 

 is the habit of the tree fern and that of tlie ]ialni (see Fig. 

 S3). 



Gl. Lower plants. — In the case of moss-plants, and such 

 algae and fungi as develop stems, the stems are very much 



Fig. 8:2. A palm of ibe paJuiutto type (fan palm), with low stem aud a crown of large 



leaves. 



simpler in construction, but tliey serve the same general 

 purpose. 



62. Conduction by the stem. — Aside from the work of 

 producing leaves and furnishing mechanical support, the 

 stem is a great conducting region of the plant. This sub- 

 ject will be considered in Chapter X., under the general 

 head of "The Xtttritiou of Plants," 

 7 



