II. 



LYCOPODIUM CLAVATUM (The Common 

 Club-Moss). 



SPOROPHORE. 



I. In a well-grown plant recognise the following 

 external characters : 



1. The Stem, often extended to a great length, is 

 creeping, and frequently branched, apparently in a 

 monopodial manner (for particulars see below) : the 

 stronger branches are also creeping, the weaker branches 

 ascending. 



2. From the under side of the stem Roots are de- 

 veloped, which frequently (but not always) appear at 

 points where the stem branches. The roots them- 

 selves are branched dichotomously, but the limbs of the 

 dichotomy may develop either equally or unequally. 



3. The stem is covered with Leaves, which are 

 simple in form and linear, with ciliate margin, and a 

 long awn-like apex. The arrangement of the leaves is 

 complicated, and has been described by Braun as being 

 partly in whorls, partly spiral : the number of members 

 of the whoils is variable, as is also the angle of 

 divergence of the spirally-arranged leaves. 



4. The fertile branches, or Cones, which bear 



