Var. dendroideum lias all the leaves alike and incurved spread- 
ing ; branches more erect. Common. 
Figured in Wood’s “Botanist and Florist,” page 413. 
207. L. sabinaefolium Willd. Ground Fir. Rootstalk most- 
ly creeping underground ; branches short, small, repeatedly forked 
flattened and clustered ; leaves four ranked, small and appressed ; 
spike short peduncled. Most resembles L. complanatum. Roches- 
ter, Vt., in cold, evergreen woods, altitude 1,500 feet. TV. W. Eg- 
gleston. Chatham, N. H., elevation 3,500 feet, George Haley. In 
Maine, St. Francis, M. L. Fernald; Mt Katahdin, F. P. Briggs. 
Probably not rare in northern sections. Middle of September. Can- 
ada, Newfoundland. Rocky mountains. 
208. L. davatum L. Running Pine. Extensively creep- 
ing above ground with ascending branches ; usually a pair of 
spikes two inches long, on peduncles ; leaves hair-pointed. Com- 
mon in dry woods. Early in September. Northern parts of both 
hemispheres, and high mountains of the tropi.cs. A very distinct 
form of this species is to be found in moist, sunny situations. 
Figured in Hooker’s “ British Ferns,” Underwood’s “ Fern Al- 
lies,” and by Knobel and Anne Pratt. 
210. L. complanatum L. Evergreen. Stems extensively 
creeping ; branches repeatedly forked, fan-shaped ; leaves very 
small, four ranked, appressed, of two kinds ; peduncles long, with 
2-6 spikes. Common and well known. Middle of Sept. North 
temperate zones of both hemispheres, and high mountains of the 
tropics. Large patches of this species are occasionally found hav- 
ing all the spikes bifurcate from near the base. 
Figured by Knobel. 
Var. Cliamcecijparissus A. Braun, has narrower, less spread- 
ing, more erect, leafy branches ; leaves less distinctly dimorphous ; 
apparently maturing its spikes earlier. 
