MUSCI. (MOSSES.) 73 
4 12. HARP{DiUM, Sulliv. — Stems rootless, ascending, fastigiately divided; di 
sions long, subpinnately branched ; branches more or less leaves 
fry WigacmeT falcate-secund, subcontinuously texture membrana- 
tion minute, linea’ sule oblong, cylindrical, : 
us, firm; areola 
pitied longs operculum short, convex-conic : mostly marsh-speci 
40. H. uncinatum, Hedw. Monocious; stems 2/—4! long, somewha 
rigid ; leaves crowded, gradually lanceolate-subulate from a — base, plicate- 
striate, serrulate, ae — the midd le; oe cylindrical, erect-cernuous ; 
_annulus broad. — Rocks and decayed logs, i st places, White Moonsies of 
New Hampshire, pate et pee sail als yellowish-green turfs. (Eu.) 
41. H. revélwens, Swartz.- Monecious; distinguished from the pre- 
ceding by its softer, dark purple, sabe more linear leaves, when dry rather tor- 
tuous, not plicate, with a shorter ema and by its somewhat incurved oblong 
capsule. — Marshes and bogs, Northern Ohio. u.) 
42, WI. fitiitams, L. Monccious; stems longer than in the last two 
cies ; stem-leaves elongated-lanceolate, remote, lees often not falcate-secund, 
—" Cragaes = the point; — vee bovepe incurved-horizontal, with a 
bse wamps and stagnant water. — Celor 
; an 
usually dark green. (Eu. 
43. HL. eee Hedw. Dicecious ; typical form slenderer than in 
the th ; leaves broadly ovate-lanceolate, acuminate, with a short 
compre ie: costa seuchitie nearly to the point, and a somewhat rectangular are- 
elation; alar cellules large, inflated, pellucid; capsule turgid, incurved-oblong. 
amps and ar. 
tone , Penn., Les- 
quereur.— Var.? G1GANTEUM, Bryol. Europ. “ Ethans Pond” is > Willey Meas: 
tain, New Hampshire, James. St. Paul, Minnesota, eae: (Eu.) 
$13. CRATONEURON, Sulliv. — Stems p: ascending, villous and 
densely radiculose ; the divisions few, esta nets carsting leaves sjandbibetiep 
lanceolate-attenuated from a cordate base, spreading or fulcate-secund ; areolation 
‘ong ; costa stout, subcontinuous : capone ‘nro cernuous : operculum 
sree — Mostly in wet places, on calea 
44. Hi. filicinum,, L. Dicecious ; leaves ea concave; annulus sim- 
ple.— Wet places, on dripping rocks, io. . commutatum, Hedw., a 
closely related species found in British ‘Aesiions| is a somewhat larger plant ; 
having the leaves softer, longer-attenuated, plicate, and more falcate, with a 
compound annulus. (Eu.) 
4 14. PT{LIUM, shui — Stems erect, large, rigid, rootless, villous, simple or 
dichotomous, with one or two short innovations, densely cristate-pinnate, frond-like : 
leaves pile lanceolate, attenuated, circinnate-secund, obsoletely bicostate, sulcate , 
areolation minute, linear: capsule cylindrical, incurved-horizontal : operculum con- 
vexr-conic : pedicels long. 
45. H. Crista-Castrénsis, L. Diccious; leaves yellowish or ful 
vareagpemenne © ihe er in mountainous districts ; a striking, showy _ 
beds, many rods in extent. (Eu.) 
species, 2 aise of oF 
