70 BOTANY AND PHARMACOGNOSY. 



SPERMOPHYTES. 



The Spermophytes, or Seed Plants, constitute the third of the 

 great divisions into which plants are divided. The plants belong- 

 ing to this division not only form the most conspicuous feature of 



Fig. 46. Several species of Lycopodium. i, Ground pine (L. obscurum) showing a 

 leafy branch with one strobile at the apex; 2, a branch of trailing Christmas green (Z.. 

 Complanaium) bearing four or five strobiles at the apex of long dichotomously branching 

 stalks: 3, club moss or running pine (L. clavatum) with a branch bearing four strobiles; 

 4, shining club moss (L. lucidulum) with small sporangia borne in the axils of the leaves. 



the flora because of their size and general distribution, but also 

 because of the fact that the flowering plants render a large number 

 of them especially attractive. The plants of this group are 

 also of great importance from an economic point of view. They 



