wa a 
lR.reeurvans Michaux. —  Leskea Mich; Raphidostegium 
Sauerbeck et Jæger: Hypnum Schweegr.; Sull. icon. musce. 
Leaves recurved gen. to middle, denticulate above it, with 
long filiform serrate point; alar cells orange. Perichetial leaves 
gradually long-acuminate, serrate only at the short point. Cap- 
sule suboblong curved; teeth orange; segments entire; beak long; 
pedicel us. somewhat long. Stem red. Tufts yellowish green. 
Dioecious but often fruiting. — Trees and logs. Amer. Can.: 
Macoun; White; Moser; Waghorne. 
2.R.Whitei Kindb. n. sp. 
Leaves faintly or not recurved, gen. entire below acumen, 
with serrate filiform or subulate point; alar cells hyaline. Pe- 
richetial leaves dentate at the long acumen. Capsule suboval 
eurved or oblique; teeth pale; segments entire; beak not long; 
pedicel short. Stem pale or pale red. Tufts green. Monoe- 
cious. — Trees r. Amer. Can. Ont. near Edmonton 1892: J. 
White, com. Macoun. 
B. Leaves not distinctly curved, gen. quite entire and small. 
Monoecious or (R. subdemissum) dioecious. 
à. Branches not julaceous. Stem radiculose. Leaves recurved. 
3.R.demissum Wilson. -— Hypnum Wils.; Raphidostegium 
Notaris. 
Leaves ovate-oblong acute sometimes short-acuminate, r. fili- 
form-pointed, gen. entire and recurved all around; alar cells 
rotundate not large, upper lanceolate, the others linear. Peri- 
chetial leaves subulate-acuminate. Capsule very small suboval 
strangulate often arcuate; neck not distinct; teeth yellow, orange 
below; segments yellow; pedicel short. Tufts green or brown- 
green sparingly radiculose. — Wet rocks. Eur. r. Switzerl.! 
Engl: Cunliffe. Germany: Schimper; Boulay.: Amer. less r. Can.: 
Macoun; Moser; Waghorne. U. S: com. Macoun. 
4.R.Welwitschii Schimper. — Rhynchostegium Sch.; Raphido- 
stegium Sauerbeck et Jæger. 
Differs from the last: Tufts compact bright or yellowish green 
silky glossy and velvet-like. Leaves ovate-oblong or ovate- 
lanceolate, long-acuminate often filiform-pointed; alar celis larger. 
Peristome paler. Perichetial leaves filiform-pointed. — Trunks 
of Olea and Quercus r. Eur. Italy: Bottini; Arcangeli. 
5R.mieroearpum Bridel. -— Leskea Brid; Raphidostegium 
Sauerbeck et Jeger; Hypnum C. M.; Sulliv. ic. musc. 
Differs from R. demissum: Leaves gen. acuminate, sometimes 
faintly sinuolate. Capsule not strangulate r. arcuate; neck more 
