— $29 
Switzerl.! France: J. E. Zetterstedt. Spetsbergen: Berggren. 
Amer, Greenl.: Berggren. 
b. Leaves small; costa excurrent smooth at back. Tufts 
dense tomentose. Capsule not large. ; 
58.D.elongatum Schleicher. 
Leaves us. from somewhat broad base short-subulate and 
entire, nearly all appressed when dry; angular cells diversiform, 
the alar brown; other cells narrow except the gen. short upper; 
cosía somewhat broad and not long-exeurrent. Capsule faintly 
curved. Tufts green or brownish us. very high. — Swamps 
and wet rocks princ. in alps. Eur. nearly common in northern 
alps. Sweden, Norway! Amer. Can.: Drummond; Macoun; Wag- 
horne. Greenl.: Wensk, com. Roell. 
*D.dovrense Kindb. n. subsp. AON 3s 
Leaves narrower with longer subula, entire and not brittle, 
nearly all appressed when dry; nearly all cells narrow except 
the alar; costa longer-excurrent. Capsule faintly curved. — 
Eur. Norway in Dovrefjeld! 
* D.subfragilifolium Kindb. n. subsp. 
Leaves narrow long-subulate faintly denticulate above, flexuous, 
sometimes brittle; costa long-excurrent narrower. Capsule ar- 
cuate. — Northern alps r. Hur. Norway near Kongswold! Amer. 
Can.: Waghorne. 
* D.attenuatum Kindb. n. subsp. ; 
Leaves larger, gradually tapering to a somewhat long subula, 
nearly entire and often brittle, the uppermost flexuous; costa 
short-excurrent. Capsule more or less curved. Habit of D. 
. fragilifolium. - Tufts low. — Amer. Can. Labrador: Waghorne. 
. 99.D.fragilifolium Lindberg. — D. Macounii Austin in herb. 
.. Macoun. s 
: Leaves from narrow base very long-subulate, entire and brittle, 
. Bn. straight erect or the uppermost flexuous; alar cells r. well- 
defined, the others gen. rectangular or some few short; costa 
narrow very long-excurrent. Capsule oblique us. arcuate, larger 
than in D. elongatum. Tufts low us. green or pale brown. 
Bibite of-D. > striclum. 3220 logs in northern princ. subalp. 
districts r, Eur. Norway! Sweden: S. O. Lindberg: E. Nyman. 
- Can.: Drummond; Macoun; Waghorne. : 
_€. Leaves small entire; costa percurrent ‘smooth at back. 
Tufts densely radiculose. Capsule small. Habit of D. elongatum. 
60.D.groenlandicum Bridel. — D. lJabradoricum ©. M.; D. 
uinerve Zetterstedt. x 
