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in the lower part; leaves of the sterile stems usually distant, 
plane, quadrate or broadly ovate-quadrate, more or less nar- 
rowed at the base and very obliquely inserted, not decurrent, 
divided by an obtuse or lunulate sinus into 2 unequal, usually 
obtuse lobes, the antical being the larger, margins entire; 
leaves of the fruiting stems broader, less obliquely inserted 
often imbricated, irregularly 2-4-lobed, increasing in size to- 
ward the perianth; underleaves occasionally present, lanceo- 
late or ovate-lanceolate, entire, free or connate with one or 
both adjacent side-leaves; 9 bracts large, often broader than 
long, quadrate or orbicular-quadrate, 3-4-parted with narrow 
sinuses, lobes acute or obtuse, entire, sinuate or somewhat 
subdivided; bracteole single, ovate or obovate, entire or 2- 
lobed, connate with the innermost bract; perianth terminal, 
long-exserted, erect, cylindrical, obtusely 5-carinate to below 
the middle, composed of a single layer of cells in the upper 
three-fourths, thence of 2 layers down to very near the base, 
where it becomes 3 or 4 cells in thickness, the mouth con- 
tracted, minutely and irregularly denticulate; capsule small, 
Oval; spores muriculate, reddish-brown, elaters similarly col- 
ored; perigonial spike tinged with purple, at first terminal but 
later innovating from the apex; bracts 2 to § pairs, imbricated, 
complicate, bilobed with obtuse lobes and_ sinus, oligan- 
drous; gemmiparous stems small, or often depauperate, bear- 
ing the minute oval gemmz at their apices and on the margins 
of modified upper leaves. : 
_ Sterile stems about 1 cm. long and 0.18 mm.—Oo.25 mm. in 
diameter; fertile stems longer and thicker; leaves of the sterile 
stems usually between 0.9 and 1.1 mm. in length and breadth; 
leaf-cells medium-sized, polygonal, thin-walled, usually between 
0.034 and 0.046 mm. in diameter in middle of leaf, but sometimes 
below 0,030 mm. and more rarely above 0.050 mm. ; inner peri- 
chaetial bracts 2-2.5 mm. long and 1.75—2 mm. wide; perianth 3 
mm. long and 0.8 mm. wide; spores mostly 0.012-0.014 mm. in 
diameter ; elaters 0.1 mm. long and 0.008 mm. thick. . 
Hab.—In peat bogs; Atsion and Pleasant Mills, New Jersey 
(A. W. E.); in a wet path through boggy ground, East Haven, 
Connecticut (A. W. E.). 
In spite of the occasional presence of underleaves, this species 
bears some resemblance to Jungermanmia incisa, Schrad.; it differs 
from that species most markedly in its pale color and looser habit, 
in its usually 2-lobed and explanate leaves with entire margins, 
and in its cylindrical perianth ; its leaf-cells, too, are larger, less 
chlorophyllose, and with thinner walls. 
New Haven, Conn. 
Re 
