— 986 — 
in alps, common in northern districts, Eur. Sweden, Norway! 
Amer. Can.: J. Macoun; Waghorne. Alaska: J. M. Macoun. 
2. Canescentia. 
2.R.canescens Weis. — Hypnum Weis; Racomitrium Brid. . 
Leaves from broad ovate-oblong base gen. abruptly tapering 
to a subacuté acumen, recurved nearly all around; upper and. 
alar cells sukquadrate, the others rectangular; costa rough at - 
back, us. abbPeyiate; hairpoint r. short or indistinct.  Pedicel 
us. long. — Stoné-ground also in alps common. Eur. Sweden, 
Norway, Switzerl.! A Can.: J. Macoun; Waghorne. Alaska: 
J. M. Macoun. U. S.: Roell. ; 
* R.subfaseieulare Kindb. n. subsp. ido 
Leaves fainter papillose, muticous or with very short hair- 
point. — Rocks princ. in alp. region r. Eur. Norway! Austria: 
Venturi. 
*R.muticum Kindb. bull. Torr. club. XVII. 
Leaves fainter papillose muticous, finally yellowish brown; —— 
costa percurrent. — Alp. region r. Amer. Can. Brit. Col. 1950 — — 
metr. a. sea: Macoun. HET S 
3.R.Panschii C. Mueller. — Grimmia C. M.; Racomitrium —— 
Kindb. i ^ 
Differs from R, canescens: Leaves subovate obtuse with very 
short acumen without hairpoint or only faintly hyaline at apex, 
faintly papillose. Tufts low blackish. Capsules unknown. — > 
Stem without nodose branches. — Arctic district r. Amer. —— 
Greenl. isl. Sabine: Pansch, com. C. Mueller. (ay We 
9. Papillosa. er 
A. Leaves very broadly acuminate or obtusate, arrounded 
at the us. dentate apex, short broad and channelled, without 
hairpoint; costa not percurrent. Stem without nodose branchlets. 
4.R.aciculare L. — Bryum L.; Racomitrium Bridel. — 
Leaves us. green or blackish when dry; upper cells rotundate. 
Capsule suboval; teeth deeply cleft; pedicel somewhat long. — 
Wet stones also in alps. Eur. nearly common. Sweden, Swit- 
zerl, Spain! Amer. Can.: J. Macoun; Waghorne, Alaska: J. M. 
Macoun, ; i phe 
5.R.Neevii C. Mueller. ens 
Leaves us. bright green also when dry; upper cells subqua- 
drate. Capsule ovaloblong; pedicel short. — Wet rocks 
Amer. Can. prine. in Pacif, distr: J. Macoun. Alaska: J. 
Macoun. [rco 
B. Leaves narrowly acuminate entire. 
