PLANT GROUPS 



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probably heard them called "evergreens," because their 

 leaves do not fall off in the autumn, and they remain green 

 all winter. The name of the group is Gymnosperms, which 

 means "naked seeds." The seeds are not enclosed in a 

 case or fruit. You have seen a pine-cone, made up of 

 hard, overlapping things called "scales." If you break off 



FIG. 103. Horsetails. 



one of these scales you will find one or two naked seeds 

 fastened to its upper side near the base. Gymnosperms, 

 therefore, produce seeds, but they do not produce flowers. 



The other group of seed-plants is very much larger, and 

 most of our seed-plants belong to it. It is called Anglo- 

 sperms because the seeds are produced in a case or fruit. 

 Angiosperms means ' ' seeds in a case. ' ' You know that you 

 have to split open a pea-pod to find the seeds; and that 

 the seeds of apples are in the "core." 



What people most notice about Angiosperms, however, 



