SHOOTS 
87 
rangement is very different from that found in Monocotyle- 
dons. It will be noticed how similar in general appearance 
is the habit of the tree fern and that of the palm (see Fig. 
83). 
61. Lower plants. In the case of moss-plants, and such 
algae and fungi as develop stems, the stems are very much 
FIG. 82. A palm of the palmetto type (fan palm), with low stem and a crown of large 
leaves. 
simpler in construction, but they 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 Nutrition of Plants." 
7 
