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the highest mountains. He says that he has in only a very few stations 
seen perianths, and in only one instance had it mature capsules. 
The writer has it from along the Osceola trail with abundant antheridial 
plants, and both young perianths and ones with mature capsules. The 
“ scharfsichtige ” Nees described it as a variety of L. porphyroleuca, and 
while the two are perfectly distinct, besides growing in different places, 
they do agree in the delicately ciliate mouth of the perianth, in contrast to 
the small teeth of the perianth-mouth in L. ventricosa. Schiffner says that 
the teeth are often as much as six cells long, but this is better observed on a 
young perianth, as by the time the capsule is mature, the perianth has 
become somewhat weather-beaten. 
The antheridial plants are quite conspicuous, bearing five or six pairs of 
saccate bracts, each containing one or two large antheridia. They are 
intercalary in their mode of growth, and old plants will sometimes show the 
bracts of three successive seasons. 
L. longidens has leaves with sharply-pointed lobes, and is dark-green, 
while L. porphyroleiica has less clean-cut and blunter lobes to the leaves, 
with a shallower and more obtuse sinus. They are of about the same size, 
being the smallest members of this group. The latter is also usually abund- 
antly fertile. Of course with the microscope the large trigones distinguish 
this latter instantly, for L. lotigidens has cells “ thin-walled, except for their 
minute trigones.” 
The plants have very abundant rootlets, and cling together, by means of 
these and of the sharp teeth of the leaves, when a tuft is picked apart. 
Gemmae are borne abundantly on the tips of the upper leaves of both 
sterile and antheridial plants. They have delicate walls and are obtusely 
tri- or quadrangular, with rounded sides. Dr. Evans says that Dr. Farlow’s 
specimens have green gemmae, and attributes it to their having grown in 
the shade; but it is probably because they were not quite mature, as many 
of the writer’s specimens have yellowish-brown gemmae. 
Warnstorf in Kryptogamen- Flora der Mark Brandenburg, gives an 
excellent figure of the leaf, although it does not occur in the neighborhood 
of Berlin. 
Bernet, in his Cat. Hep. de la Suisse, reports it as rare, quoting two 
stations for it “on rotten logs.” In New England it has been so far reported 
from Maine and New Hampshire only, but there is undoubtedly plenty of it 
in Vermont, and it may occur among the higher Berkshires. Like all this 
group, it avoides calcareous localities. 
