86 THE TRAILING LYCOPODIUMS. 



Michigan, Pennsylvania, and New Jersey. It also occurs 

 in the mountains of North Carolina. In the southern 

 part of its range it niay be expected only in the elevated 

 regions. Further extensions of its range are likely to be 

 made when these have been thoroughly explored. Its 

 habitat may be described as upland woods, but it is 

 found in many exposed places and often grows in old 

 fields and pastures. Its abundance makes it one of the 

 first species likely to be found by the novice. 



rhe Stiff Club-Moss. 



If, while collecting in the haunts of the common club- 

 moss, one should come upon a plant closely resembling 

 that species except that the fruiting-cones are sessile on 

 the ends of the branches, he may feel sure he has dis- 

 covered the stiff club-moss (ZjCfj/^^/zw/w aniiotiimni). This 

 is seldom so abundant as its better-known relative, but it 

 is by no means rare in the elevated parts of the northern 

 United States and Canada. 



The species is like Lycopodium clavatum in so many 

 habits and superficial features that, with the exception of 

 the manner of fruiting, one description would almost 

 serve for both. The main stem may be said to come 

 nearer our idea of a rootstock, being yellowish for most 

 of its length, less leafy, and somewhat more deeply 

 buried in the ddbris of the forest floor. In length it 

 ranges from three to six feet or more, and the upright 

 branches are usually simple the first season. The second 

 season they branch or continue to increase in length, 

 finally reaching a height of twelve inches in robust 

 specimens, and often three or four times forked. The 

 branches appear to arise dichotomously, and are more 

 nearly erect than in the common club-moss. 



