— 137 — 



hyaline, the others oblong. Stem-leaves suboval short-acumi- 

 nate entire. Branch-leaves from oval-oblong base tapering to 

 an often longer and serrulate, sometimes circinnate acumen. 

 Capsule C3'lindric-oblong more or less curved, finally striate, 

 somewhat large; lid acute. Tufts brown-green. Branches subju- 

 laceouB. R. fruiting. — Rocks in alp. region r. Eur. Norway 

 less r.! Austria: Milde. France: Boulay. Spetsbergen: R. Gyllen- 

 creutz. Amer. Can. fruiting: Macoun, U. S.: Roell, com. Cardot. 

 *H.revolutum Mitten; — Stereodon Mitt.; Hypnum Lindberg; 

 H. Heufleri Juratzka, in part. 



Leaves not cu'cinnate, those of branches shorter-acuminate 

 often entire. Capsules not seen. — Eur. Norway! 

 2. Reptiliformia. 



A. Stem pinnate creeping; paraphyllia wanting or very few. 

 Branch-leaves denticulate; inner basal cells yellow. 



a. Stem-leaves entire at least below. Capsules and leaves 

 somewhat large. Tufts green. 



39.H.reptile Michaux; Schimper. — Leskea pallescens Hedwig; 

 Hypnum Beauvois; C. Mueller. 



Stem-leaves entire or ovate-oblong short-acuminate or filiform- 

 pointed; branch-leaves narrowly ovate-oblong or ovate-lanceolale, 

 entire above and at acumen, often circinnate; alar cells small 

 distinct finally brown-orange, impressed at angles on a short- 

 triangular space; the others sublinear. Capsule pale red; teeth 

 pale yellow; segments subhyaline; lid short-pointed; pedicel not 

 long. — Trees and stumps not r. Ear. Sweden, Switzerl.! Ger- 

 many: Milde. Austria: Progel. Amer. Can.: Macoun; Moser; 

 Waghorne. 

 40.H.reptiliforme Kindb. revue bryol. 1895. 



Differs from the last: Leaves larger, long-acuminate; those of 

 stem ovate- oblong denticulate above, those of branches ovate- 

 lanceolate denticulate all around; alar cells large hyaline. Cap- 

 sule pale yellow; segments yellow; lid not seen; pedicel longer. 

 — Amer. r. Can.: Macoun. 



b. Leaves denticulate all around. 



aa. Branches subjulaceous us. brown. Leaves short; cells 

 somewhat wide. 

 41.H.perichaetiale Br. eur. 



Leaves subovate acute or sometimes short-acuminate; alar 

 cells small dusky on a narrow-triangular space, the others lan- 

 ceolate-oblong. Capsule finally brown; pedicel shcfrt. — Rocks 

 r. Eur. Norway: Kaurin. Amur, Can.: Macoun. 



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