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615 THE CLUBMOSS tfAMlLt. [Lycopodium. 



1. L. clavatum, Linn. (fig. 1259). Common G. Stems hard, creep- 

 ing, 1 to 2 feet long, with ascending forked branches, 1 to 2 inches long, 

 all completely covered with the crowded, moss-like, but rather stiff 

 leaves, which are linear, 2 to 3 lines long, including their fine, hair-like 

 points ; those on the creeping stem all turned upwards ; those on the 

 branches imbricated all round. Spikes 1 to \\ inches long, scattering 

 their yellow dust in great profusion, 2 or sometimes 3 together, on a 

 peduncle at least as long, bearing small, narrow, yellowish leaves or 

 scales, about half as large as the stem-leaves. 



In hilly pastures and heaths, in central and northern Europe, Kussian 

 Asia, and North America, extending from the Pyrenees and the Alps to 

 the Arctic regions, and in the southern hemisphere. Generally distri- 

 buted over Britain, but more common in the north. Fr. summer and 

 autumn. 



2. L. annotinum, Linn. (fig. 1260). Interrupted C. The long, hard, 

 creeping stems, with short ascending branches all covered with leaves, 

 are the same as in L. clavatum, but the leaves are much stiffer, more 

 spreading, fully 3 lines long, without any hair-like point, and the spikes, 

 seldom an inch long, are always solitary and closely sessile at the 

 extremity of the leafy branches. 



In mountain heaths, woods, and stony places, in central and northern 

 Europe, Russian Asia, and North Ameiiea, extending from the Alps to 

 the Arctic regions. In Britain, only in the mountains of Scotland, 

 northern England, and North Wales. Fr. summer and aututfin. 



3. L. alpinum, Linn. (fig. 1261). Alpine C. The stems creep as in 

 the last two species, and sometimes attain a considerable length, but 

 the ascending branches are much more divided, forming close clusters 

 or tufts, 2 to 3 inches high. Leaves scarcely above a line long, few on 

 the creeping stems, numerous on the branches, and closely imbricated 

 in 4 rows. Spikes about ^ inch long, closely sessile, and solitary at the 

 extremity of the leafy branches. 



In mountain pastures, in Europe and central and Russian Asia, 

 extending from the Pyrenees and Alps to the Arctic regions. In 

 Britain, common in the mountains of Scotland, northern Ireland, and 

 northern and central, but very rare in southern England. Fr. summer. 



[L. complanatum, Linn., is a form which affects warmer climates, and 

 is distinguished by its longer, less crowded, flattened branches, and 

 several peduncled spikes. It has been found in Gloucestershire and 

 Worcestershire. ] 



4. L. Selago, Linn. (fig. 1262). Fir. C. Stems scarcely creeping, 

 though slightly decumbent and rooting at the base ; the forked branches 

 forming dense, level-topped tufts 3 or 4 inches high, completely covered 

 with their crowded but spreading dark-green leaves, all lanceolate, 3 or 

 4 lines long, with a short fine point. Spore-cases in the axils of the 

 upper leaves, not forming a distinct spike ; they are sometimes replaced 

 by little pedicellate leafy bulbs. 



In hilly pastures, in the cold and temperate countries of both hemi- 

 spheres. Frequent in all hilly parts of Britain, except some of the 

 southern counties of England. Fr. summer and autumn. 



5. Ti. inundatuxn, Linn. (fig. 1263). Marsh C. Stems slender and 

 creeping, scarcely branched, seldom above 2 inches long, with narrow- 

 linear leaves, about 2 lines long, all turned upwards. Fruiting branches 



