FILTERS 
-—— s 
15.Lstriatulum Spruce. — Hypnum Spr.; Isothecium Kindb; - 
Eurhynchium Schimp.; »Hypnum filescens Bridel»: C. M. syn. 
Leaves serrulate all around, recurved below, subdecurrent 
not densely crowded; costa long stout often rough at back. E 
Stem-leaves subovate with long subulate or filiform often twi- 2 
sted acumen. Branch-leaves ovate or broadly ovate-oblong, - 
short-acuminate without filiform point. Capsule oval-oblong; E 
cilia long. Tufts green not glossy. Resembles often I. myosu- i 
roides in habit. Very r. fruiting. — Rocks t. Eur. Switzerl.! 
9. Stolonifera. 4 
16.I.stoloniferum Hooker. — Hypnum . Hook.; Isotheeium - 
Bridel. h 
Leaves small ovate-lanceolate with long often filiform-pointed | 
acumen, serrate above, entire below middle, decurrent; alar E 
cells on a short space.  Perichetial leaves long-subulate with — 
filiform point. Capsule oval-oblong; teeth pale; cilia long; lid 
acute or apiculate. Tufts soft green or whitish green, faintly 
or silky glossy. Branches crowded; flagelle numerous long 
slender. — Trees. Amer. Pacif. distr. not uncommon. Can.: Je 
Macoun. Alaska: J. M. Macoun. U. S.: Howell, com. Cardot. 
17.L.spiculiferum Mitten. 
Differs from the last: Leaves larger, serrate nearly all around, 
not decurrent; perichetial short-subulate. Capsule oblong; teeth 
pale; cilia short. Tufts less soft us. brownish and glossy. 
Branches shorter, less slender, often legs crowded; flagellæ often 
wanting. — Trees. Amer. Pacif. distr. not uncommon. Can: 
Macoun; Roell. U. S.: Roell, com. Cardot. cae 
18.I.Cardoti Kindb. bull. Torr. club XVII. 
.Leaves larger than in the both last, shorter acuminate; those 
of stem faintly denticulate below with an at apex twisted acu- 
men; cells often yellow. Perichetial leaves long-subulate. Cap- 
sule oval; teeth yellow; cilia long; lid acute. Stem often pin- 
nate; branches not crowded; flagelle thick r. present. Mo 
robust than the both last. Tufts us. brown. — Trees r. Amer- 
Pacif. distr. Can.: Macoun. U. S: Roell, com. J. Cardot. ; 
4. Thamnioidea. 
19.Lobtusatulum Kindb. revue bryol. 1895. sit 
Stem-leaves broad-ovate short acuminate acute, recurved below, 
serrate above; branch-leaves smaller, suboval obtusate often. 
obtuse; upper (sometimes also the middle) eells oval or broad 
oblong, middle narrowly oblong or sublanceolate; costa reaching 
