PEENS OP GREAT BRITAIN. 19 



Order II. LYCOPODIACE^.— CLUB-MOSSES. 



This Order consists of flowerless evergreen plants, 

 ■with simple, veinless, usually taper-pointed leaves, with 

 their seed-capsules seated in the angle formed by the 

 leaf and the stem, or raised in spikes at the top of the 

 stem. The capsules are destitute of a ring, and are 

 2 or 3-valved. 



1. Ltcopodium (Club-moss). — Capsules 1-celled, 2- 

 valved, containing a fine powdery substance ; or 3-valved, 

 enclosing a few large grains or seeds ; stems rigid, clothed 

 with short leaves. Name from lycos, a wolf, and pous, 

 a foot, from a fancied resemblance of the branches to 

 the paw of an animal. 



Order III. MARSILACE^.— PEPPERWORTS. 



These are flowerless plants, bearing capsules without 

 a ring, either enclosed within the swollen base of the 

 leaves, or rising from the root-stock of the plant, and 

 containing seeds or sporules of two sorts, attached to 

 thread-like receptacles. 



1. IsoETES (Quill- wort). — Capsules surrounded by 

 the bases of the hollow leaves, containing two sorts of 

 spores, some larger than the poUen-Hke dust which 

 accompanies them. Name from isos, equal or alike, 

 and etos, the year, because evergreen. 



