— l5 —. 
III. Pseud-Aeroeladium. Leaves not faleate; alar cells very 
large. Branches euspidate by convolute leaves. un 
IV. Seorpidium. Branches not cuspidate, their leaves falcat 
alar cells indistinct. : 
b. Stem not pinnate, sometimes radiculose. 
V. Pseudo-Limnobion. Alar leaf-cells gen. distinct. 
aa. Costa of branch-leaves subpercurrent. Stem eradiculose. 
1. Badiiformia. Leaves entire not decurrent, those of branches 
often faleate. Dioecious very r. fruiting ; 
bb. Costa of leaves gen. short or indistinct. : 
2. Ochraceiformia. Leaves entire or nearly so, decurrent and 
distant; those of branches often faleate. Stem eradiculose. 
Dioecious r, fruiting. 
3. Molliformia. Leaves not or indistinctly decurrent, sometimes 
denticulate, gen. crowded and not faleate. Stem not creeping 
us. eradiculose. Often monoecious. 5 
4. Montaniformia, Leaves small sometimes decurrent, us. den- 
ticulate; those of branches often falcate. Stem creeping. Us. 
monoecious. 
I. Eu-Calliergon. 
A. Leaves gen. decurrent. 
1.C.eordifolium Hedwig. — Hypnum H. 
Leaves us. distant and large; upper cells linear-lanceolate, 
the lower (below middle) suboblong hyaline. Stem-leaves gen. 
subovate; costa subpercurrent. Capsule large; lid obtuse mamil- 
late or apiculate. Stems loosely tufted, r. radiculose; branches 
gen. long and simple. "Tufts us. green. Us. monoecious. 
Swamps and other wet places not r. but not common. E 
Sweden! Amer. Alaska: J, M. Macoun. Can: Macoun; Moser; 
Waghorne. : 
*€. Richardsoni Mitten. — Stereodon Mitt; Hypnum Lesq 
et Jam. H. Breidleri Juratzka; H, cyelophyllotum Holzinger. 
Leaves less distant; only the lowest basal cells dilated; tl 
alar sometimes more distinct. Tufts more dense, often browni 
with golden glossy branch-tops. Stem pinnate; branches n 
long. — Eur, Sweden, Norway! Austria: Breidler. Amer. Can.: 
Macoun. 
2.C.giganteum Schimper. — Hypnum Sch. 
Differs from C. cordifolium: : ; 
linear except the large hyaline alar. Tufts dense green ¢ 
brownish. Branches pinnate wi i 
cious very r. fruiting, — Swamps, 
_ Norway! Amer. Can.: Macoun; Moser, 
