— 124 — 
chetial leaves serrate longer acuminate. Capsule cylindric 
cuate strangulate; lid large rostellate; peristome not seen; pe 
flexuous deflexed arcuate. Tufts dense green. Stem cree 
not pinnate; branches subjulaceous often incurved at the 
paraphyllia broad. Probably monoecious, — Trees r 2 
Can.: Macoun; Dearness, com. Macoun. 
61. Myurium Schimper. 
1.M.Boscii Schwegrichen. — Hypnum Schw.; Sulliv; icon 
Myurium Kindb. Bc: 
Leaves large very concave not decurrent, from ovate-corda 
not recurved base abruptly narrowed to a subulate often tw 
point, striate, denticulate all around; alar cells few. suboval : 
irregular, lower basal often brownish, the others sublinear; eos 
simple vanishing above middle or short and double. Ca » 
large oblong-oval curved; annulus broad; segments nearly. sp! 
cilia 3 not much shorter, not appendiculate; pedicel 2—3 cen: ' 
long. Perichetial leaves abruptly long-subulate. Stem subp 
nate or irregularly divided; branches robust turgid. Dioe 
r. fruiting. — Earth in woods. Amer. U. S. »not uncomm 
Sullivant. Austin, com. Macoun; Sullivant, com. C. Mue 
Fitzgerald, com. Renauld. EM 
* M.coloradense Austin. — Hypnum Aust; Myurium Ki 
Cells of branch-eaves often oval-oblong princ. the up 
sometimes also the angular. Capsules unknown. — Amer. 
U. S. Arkansas Hot Springs: Ch. Roell, com. J. Roell. . 
2.M.Hebridarum Schimper. . Eee 
Differs from M. Boscii: Leaves narrower, from ovate-ob 
or oblong-linear base more abruptly contracted to the p 
not striate; costa indistinct. Capsules unknown. — Rocks ! 
sea r. Eur. Scotl.: Fergusson, com. Husnot (Africa, Mat 
G. Fritze, com. Roell and Kaurin). 
| 62. Hypnum L.; Dillenius; in part. : 
A. Leaves with simple (sometimes in H. Bambergeri 8 
and double) costa. Dioecious or (in H. fluviatile and someti 
in Harpidium) monoecious, ks 
a. Leaves (exc. H., erythrorhizon and H. harpidioides 
recurved at borders. — 
I. Alaria. Leaves (princ. the youngest) mamillose above, 
striate; middle cells often dilated, alar often yellow; | 
thick. Stem us. pinnate; paraphyllia present. Leaves fal 
IL Cratoneuron. Leaves not mamillose, gen. not str 
middle cells gen. dilated, alar gen. distinct but r yellow; € 
