270 COMMON CANADIAN WILD PLANTS. 



short, thick, leafy spike. Stem-leaves lanceolate, acute, 

 soft, spreading, mostly entire, those of the spike closely resem- 

 bling them. Sandy bogs. 



Var. BigelOVii, Tuckerm., has taller stems and leaves 

 more upright and denticulate. Atl. Prov. 



-t- *- Leaves of the catkin-like spike quite different from those of the 

 stem. 



4. L. anno'tinum, L. Stems creeping, 1-4 feet long. 

 Branches 4-9 inches high, once- or twice-forked. Spike 

 sessile, the leaves of it yellowish and scale-like, ovate or 

 heart-shaped, the others spreading orreflexed, rigid, pointed, 

 nearly entire, pale green. Cold woods. 



5. L. dendroi'deum, Michx. (GROUND PINE.) Boot- 

 stock creeping underground, nearly leafless. Stems much 

 resembling little hemlocks, 6-9 inches high ; numerous fan- 

 like spreading branches with shining lanceolate entire 

 leaves. Spikes sessile, nearly as in No. 4, 4-10 on each plant. 

 Moist woods. 



6. L. Clava'tum, L. (CLTJB-MOSS.) Stem creeping or run- 

 ning extensively. Spikes mostly in pairs, raised on a slender 

 peduncle (4-6 inches long). Leaves linear, awl-shaped, oristle- 

 tipped. Dry woods. 



7. L. COmplana'tum, L. Stem creeping extensively. 

 Branches flattened, fan-like and spreading, forking above, 

 the branchlets crowded. Leaves awl-shaped, small, in 4 

 ranks. Spikes 2-4, cylindrical, on a slender peduncle. Dry 



ORDER CXV. SELAGINELLA'CE^. 



Small leafy plants, terrestrial or rooted in mud. Stem 

 branching or short and corm-like. Spore-cases solitary, 

 axillary or borne on the upper surface of the leaf at its base 

 and enwrapped in its margins. Spores of two' kinds, the 

 large ones (macrospores) developing prothallia which bear 

 archegonia only, and the small ones (microspores) giving 

 rise to antheridia only. 



