This species has long creeping stems which are rather bare of leaves. From these, however, spring the upright branches which are thickly covered with foliage; every one of the leaves terminates in a point. The Alpine Club Moss is an evergreen plant, and it is of a very bright green colour. The branches which bear the fertile spikes are somewhat taller than the barren ones, and these are often twice forked. The cone bears a number of thin scales, and between each of these and the stem is to be found the kidney-shaped capsules. The Alpine Club Moss is often to be found in great abundance in elevated districts in Scotland and Ireland. It seems to be most happy in elevated situations. _Lycopodium annotinum._ In this case the specific name is from the Latin term signifying “a year old.” This is an allusion to the fact that the yearly additions to the plant are very evident. The Interrupted Club Moss. This species at first sight is sometimes taken for the Common Club Moss. It is, however, readily distinguished when its branches are examined; these are increased annually by an addition which is very plainly to be observed. It is seen that at these periods the leaves are smaller and much less inclined to spread than in the normal forms. At times the branches divide, and at the tip of some of the upright shoots occur the fertile cones. Each one of these is about an inch long, and it is covered with bracts upon which the spore capsules are borne. The Interrupted Club Moss is a fine species, and is of a pale green colour. This is probably the rarest of our native Club Mosses. In some parts of Scotland it is said to be abundant, but the plant is always a local one. It has been found in the North of England, though it is decidedly uncommon. In the United Kingdom there is only one native species of Selaginella. _Selaginella spinosa._ In this case the generic name is derived from the name Selago; actually the name means “a little Club Moss.” The specific name has reference to the tiny spines on the margins of the leaves. The Lesser Alpine Club Moss. This plant is, of course, very distinct from the Lycopodium, in that it produces two kinds of spores. The Lesser Alpine Club Moss is a small plant with both prostrate and upright stems. The leaves are very tiny, and owing to their semi-transparent nature the whole plant is of a pale green colour. Some of the upright stems are barren, but a certain proportion bear the spore capsules in the axils of the small leaves. In the upper part of the cone occur the capsules containing the microspores, whilst in the lower portion are to be found the sporangia, each of which produces three or four megaspores.