wwe BR ee 
triangular or sublinear space. Capsule subeylindrie; teeth pale 
red; annulus broad loosed in pieces or revoluble; lid obtuse; 
pedicel often short. Branches crowded - faintly compressed. 
Tufts dense green or brown. Monoecious. -— On prostrate trees 
r. Amer. Can.: Moser. U. S.: Sullivant, com. C. Mueller; Austin, 
com. Macoun. 
b. Leaves denticulate nearly all around. Capsules unknown. 
9.E.acicularis C. M. et Kindb. cat. Canad. m. 
Leaves with subovate base and subulate or filiform-pointed 
acumen, with difficulty loosed from the stem; inner basal cells 
narrow, angular suboval numerous, special alar r. distinct. 
Branches julaceous. Tufts compact radiculose. Probably dioe- 
cious. — Rocks r. Amer. Can.: Macoun. 
10.E.Macounii C. M. et Kindb. 1. c. 
Leaves with subovate or ovate-oblong base and subulate 
acumen; lower basal cells suboval nearly similar not large. 
Branches complanate. Tufts green sparingly radiculose. Dioe- 
cious. — Logs r. Amer. Can.: J. Macoun. 
i 32. Platygyrium Bryol. eur. 
ed di Bridel. — Pterigynandrum Brid.; Platygyrium 
r. eur. ; 
Leaves recurved entire ovate-oblong or ovate-lanceolate, acu- 
minate without filiform point; upper cells rhomboidal-oblong, 
middle lanceolate-linear, alar quadrate often orange on a trian- 
gular space.  Perichetial leaves entire long-subulate, orange at 
base. Capsule oval-oblong or subcylindrie; teeth orange; seg- 
ments yellow linear-subulate entire, not connated at base, shor- 
ter than teeth without basal membrane; lid rostellate; pedicel 
gen. not long. Tufts us. glossy green. Branches short, often 
curved, sometimes with small branchlets to propagation. Dioe- 
cious or pseudo-monoecious. Resembles Pylaisia and Hypnum 
 perichetiale. — On trees or r. on rocks. Eur, not common, r. 
fruiting. Sweden, Norway, Switzerl.! Amer. Can.: Macoun. U. 
S.: Sullivant, com. C. Mueller. : 
2.P.brachyeladon Bridel; — Pterigynandrum Brid.; Platygyrium 
Kindb.; Neckera €. M. syn. : 
Differs from the last: Endostomial segments orange linear 
connated at base and not shorter than teeth; lid of capsule 
rostrate; monoecious. Branches straight elongate. — Trees r. 
Amer. Can.: Macoun. U. S. Michigan: Purpus, com. Roell. 
33. 'Tripterocladium C. Mueller in Flora 1875, as subgenus. 
A. Branch-leaves denticulate nearly all around. . 
