72 American Fern Journal 



forked, with cones usually solitary at the tips. Leaves 

 uniform, spreading, 5-ranked, rigid, linear to lanceolate, 

 minutely serrulate, veined below. Spore-leaves ovate, 

 acuminate, denticulate. — Alaska to Labrador, south to. 

 Washington, Colorado and New York; Europe; Asia. 



7. Lycopodium inundati m L. (Plate 3, Fig. 2.) 



Bog Club-moss. 



Plants small, 1-6 in. long; stems creeping horizontally 

 or arching, simple or 1-2-forked, slender; roots produced 

 near end of annual growth; fertile branches erect, ter- 

 minated by a long thick, usually solitary spike. Leaves 

 linear to lanceolate, entire, acute, curved upward. Spore 

 leaves not greatly unlike the others, soft, spreading. 

 Sporangia transversely oval, splitting nearly to base. 

 Spores largo.— Washington to Newfoundland, south in 

 the Alleghenies to Georgia; Europe; Asia. 



8. Lycopodium obscukim L. (Plate 2, Fig. 2.) 



Bushy Grmmd-p'nie. 

 Stems erect, .V10 in. high, bushy-branched, the root- 

 stock subterranean. Leaves linear to lanceolate, acute, 

 entire, 8-ranked on main stem, 6-ranked on branches, 

 two upper and two lower- ranks shorter and appressed or 

 all alike and equally incurved-spreading, densely cloth- 

 ing stem to base of spikes. Spikes 1-10 on each plant, 

 Ar^A in. long. Spore-leaves many-ranked, ovate, 

 scanous-margined, each with a transversely oval spor- 

 angium in the axil.— Newfoundland and Labrador to 

 Alaska, south to the mountain- of North Carolina, 

 Indiana, California; Asia. 



SELAGIXELLACEAE. Moss-fern Family. 



Plant moss-like, leafy, much like the Club-mosses 

 except smaller, terrestrial, either prostrate or erect, 



