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. 



^- H- Leaves of the catkin-like spike quite different from those of the 

 stern. 



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 or reflexed, rigid, pointed, 

 nearly entire, pale green. — Cold woods. 



5. L. dendroi'deum, Michx. (Gteound Pine.) Eoot- 

 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. elava'tum, L. (Club-Moss.) Stem creeping or run- 

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

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

 tipped. — Dry woods. 



7. L. eomplana'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^, cylindrical, on a slender peduncle. — Dry 

 woods ; mostly with evergreens. 



Obdek CXV. SELAGINELLA'CEiE. 



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) givins 

 rise to antheridia only. 



