a. Eon 
49. Rhynchostegium Bryol. eur. 
I. Eu-Rhynchostegium. Stem with broad paraphyllia. Leav 
nearly flat; costa short double or indistinct. Dioecious í 
monoecious. 
IL Pseud-Eurhynchium. Leaves often concave; costa 
simple or in some leaves indistinct. Often monoecious. Para- 
phyllia us. wanting, in R. serrulatum sometimes present. — 
I Eu-Rhynchostegium. 
A. Leaves more or less distant, not decurrent; alar cells n 
large or not well-defined. R. fruiting. 
I.R.depressum Bruch. i 
Leaves narrowly ovate-oblong acute sometimes short-acumina 
serrulate above, nearly entire below; upper cells oval-oblon: 
middle oblong-lanceolate. Capsule suboval or arcuate strang 
late; annulus double; lid rostrate; pedicel short. Stem creepin 
Tufts glossy green. Dioecious. — Shady rocks. Ewr. not con 
mon. Sweden, Germany, Switzerl.! 
2.R.geophilum Austin; Sullivant icon. muscor. 
Differs from the last: Leaves somewhat larger and mo 
distant, subobtusate, denticulate below; uppermost cells ov: 
lower lanceolate. .Capsule not strangulate; annulus simple. 
Branches longer; stem nearly eradieulose. — Clayey shade 
ground r. Amer. U. S.: Austin, com. Macoun. i 
3.R.deplanatum Schimper. — Hypnum Sch.; Sulliv. ic. m 
Rhynchostegium | Kindb.; Hypnum (Rhynchostegium) Lq. et ^. | 
Leaves ovate oblong acute with short or more prolonged 5U- 
bulate acumen, serrulate above, minutely denticulate or near! 
entire below, cells gen. linear-lanceolate, lower sometimes sub- 1 
oblong; costa often obsolete, sometimes double. Perich tial 
leaves with dentate long-subulate acumen. Capsule oval-oblong 
or arcuate, strangulate wide-mouthed plicate when dry; seg- 
ments entire; lid rostrate, rostellate or obtuse; annulus none; | 
pedicel often short. Stem depressed creeping; paraphyllia Us — 
dentate. Tufts dense glossy green. Us. monoecious. Lea 
often crowded. —- On rocks or on base of trees. Amer. Can 
Macoun; Moser. — Male flowers not found by Sullivant. 
4.R.caloosiense Austin. -— Hypnum Austin. : 
»Differs from the last in short pointed entire leaves an 
much longer entire paraphyllia. — Leaves broadly oblique 
ovate subacuminate; areolation loose rhomboidal fusiform; ¢¢ 
geminate distinct to near middle. Capsule broadly oval mi 
constricted; pedicel short. Monoecious. — Amer. r U. S.:J. 
Smith, Austin»: Lesq. et Jam. M 
