— 151 — 
concave not plicate. Capsule oblong-cylindric; lid conic; teeth 
red. — Ponds r. Amer. Can. Vane. isl: Macoun Canad. musci 
n. 233. »U. S.» Cardot. Eur. »France, Italy, Austria»: Cardot. 
64. Dichelyma Myrin. 
Å. Leaves us. nearly straight, upper obtuse or subobtuse; 
costa not excurrent. Endostome not or only at apex cancellate. 
D.pallescens Br. eur. — Neckera leucoclada C. M. syn. 
Upper leaves denticulate below, serrate above. Capsule oval- 
oblong; pedicel short-exserted. Tufts olive-green. — On wet 
logs or on base of trees r. Amer. Can.: Macoun; Moser; Fowler. 
B. Leaves subulate falcate; costa excurrent or r. (in D. cy- 
lindricarpum) percurrent. 
a. Pedicel of capsule not exserted above perichetial leaves. 
Endostome not or only at apex cancellate. 
2.D.capillaceum Dickson. — Fontinalis Dicks.; Dichelyma Schimp. 
Upper leaves entire; costa long-excurrent. Capsule oval-oblong, 
Tufts green or blackish. Leaves smaller than in D. falcatum. 
.— Trees and logs by ponds or in rivulets r. Eur. Sweden: 
C. Hartman; Lindberg; Berggren. Amer, Can.: Macoun; Moser; 
Drummond n. 234. 
b. Pedicel long-exserted. Endostome completely cancellate, 
3.D.faleatum Hedwig. — Fontinalis H.; Dichelyma Myrin. 
- Leaves somewhat large, upper entire below and serrate above; 
. Costa short-excurrent. Capsule oblong-cylindric. Habit of Hyp- 
num fluitans. — Swamps, lakes and brooks in northern districts. 
Hur. Sweden and Norway not r| Germany very r.: Schiffner. 
.. Amer. r, Can.: Labrador: Waghorne. 
. 4D.uncinatum Mitten. 
p Leaves smaller than in the last; upper denticulate below, 
Serrate above; costa long-excurrent. Capsule oval; pedicel shorter 
3 in the last. Habit of D. capillaceum. — Logs and trees 
ìm ponds and brooks r. Amer. Can.: Macoun. U. S: Howell 
and Henderson, com. Cardot. 
5.D.eylindricarpum Austin. 
Leaves small as in the last; upper entire at least below, 
Sometimes faintly denticulate (not serrate) above; costa long- 
€xcurrent or percurrent. Capsule cylindric; pedicel long-exserted. 
. Habit of the last. — Inundated rocks r. Amer. Can. Cascade 
Mountains: Macoun; determ. Austin. 
65. Brachelyma Schimper. 
ae L.B.subulatum Beauvois. — Fontinalis Beauv.; Brachelyma 
p.; Neckera C. M. syn. 
