— 198 — 
serrate acumen, us. nearly straight, often brittle, sometimes 
eonvolute below; alar cells dilated yellow, inner basal hyaline 
narrower, other cells long. Perichetial leaves acuminate costate 
long-aristate. Capsule sulcate us. solitary. Tufts dark green. 
— Earth in woods. Amer. r. Can.: Macoun; Waghorne. U. S: 
Roell: 
27.D.consobrinum Renauld et Cardot. 
Differs from the last: Leaves shorter, perichetial short-aristate 
often emarginate; capsules smooth often in pairs, — Amer. r. 
U. 8: Henry, com. Cardot. 
28.D.scopariiforme Kindb. bull. Torr. club XVI. 
Leaves broadly acuminate or short-subulate, strongly serrate 
in upper part of acumen, not brittle, often curved r. undulate; 
alar cells brown dilated, the others gen. oblong-oval or narrower, 
r. porose; costa with serrate ridges at back. Inner perichetial 
leaves nerveless, emarginate or crenulate above. Capsule smooth. 
Tufts green. — Amer. r. Can. Rocky mts: Macoun. U. S. Mi- 
chigan: Purpus, com. Roell. 
29.D.eamptophyllum Kindb. n. sp. 
Leaves tapering to a long subulate in upper half strongly 
Serrate acumen, falcate and not crisped when dry; cells not 
porose: those. of acumen subquadrate, the alar yellow dilated 
subrectangular reaching to costa; other basal cells long. Peri- 
. €hetial leaves obtusate or abruptly tapering to a gen. longer, 
= harrow-subulate or subfiliform awn with long-excurrent costa. 
. Capsule solitary not sulcate. Tufts green above. — Amer. r. 
Can. Northern Labrador: Macoun 1896. 
— «B. Costa of leaves faintly rough at back. Upper leaf-cells 
. Ben. short. Capsule solitary sulcate. i 
= Aa, Leaves not brittle, gen. broad at base; angular cells di- 
versiform: alar dilated brown persistent, inner basal narrow. 
apsule long- pedicellate. 
30.D.Bergeri Blandow. — D. Schraderi Weber et Mohr, 
Leaves us. tapering to a long broadly sublinear in upper 
part serrulate often obtuse acumen, often undulate and flexuous; 
Upper cells skort; costa not percurrent. Perichetial leaves often 
?marginate and short-aristate. Tufts us. brown-green. —. Peat- 
= and swamps gen. common. Eur. Sweden, Norway! Amer. 
Mens Macoun. Greenl.: Vanhoeffen. 
. "Mrupineola Kindb. n. subsp. 
t cons subulate-acuminate; costa percurrent, serrulate at back. 
