The Interrupted Clubmoss 



and some, fertile, the latter, which bear the cones at 

 their extremities, being the longer. 



This clubmoss, which remains green during winter, 

 often covers considerable areas on the mountains of 

 Scotland with its branching stems. 



The specific name, alpinum y is an allusion to the 

 habitat, and the common name, Savin-leaved, calls 

 attention to the resemblance of this clubmoss to a plant, 

 Savine, or Juniperus Sabina^ by name. 



The Interrupted Clubmoss, which like the last- 

 named species is confined to the stony mountain slopes, 

 is much commoner in Scotland than in any other part 

 of the kingdom. At a first glance it seems to resemble 

 greatly the Common Clubmoss, but the peculiar feature 

 to which it owes its common name renders it easy of 

 identification. This is the possession of leaves much 

 smaller and less spreading than the normal forms, and 

 arranged at regular intervals on the erect branches. 

 The foliage of the upright stems seems, as it were, to 

 be interrupted or constricted at certain points. These 

 points really mark the beginning of each year's growth, 

 hence the specific name, annotinum, which is a Latin 

 adjective signifying "a year old." 



As in most clubmosses, the prostrate stems have erect 

 branches, some fertile, and some barren. At the head 

 of the fertile branches are the cones with leafy bracts, at 

 the bases of which the spore capsules are set. The 

 leaves proper, which are narrowly lanceolate in outline, 

 have toothed margins. But the best guide to the 

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