I ;
• i".
innovations ; leaves inclined to one side, tho lower ohovate,
gradually longer upward and obovate-oblong, incurved on one
side, open at the other below, nearly flat toward the apex, serrate
denticulate from the middle upward, obtusely apiculate,
densely areolate ; costa yellowish brown, vanishing below the
apex : buds of the male flowers sessile along the stems, radiculose
at base ; inner perigonial leaves broadly ovate-concave,
abruptly acuminate, costate : capsule on a short erect pedicel,
oblong, slightly incurved and inclined ; lid convex, obtusely
short-beaked; peristome large; segments open but not disjoined;
cilia 2 or 8, a little shorter than the segments; annulus
large, revoluble. — Bryol. Eur. t. 403 ; Sulliv. Mosses of U.
States, 43, t. 3. Orthopyxis heterosticha, Beauv. ; Lindb.
1. c. 78.
Hab. Shady banks and slopes in the woods ; common on the Eastern
slope of the United States.
S ubtribe II. TIMMIEÆ.
Stems simple or dichotomous by annual innovations. Leaves
nearly equal ; areolation round-hexagonal, papillose in the upper
part, loose at the base. Flowers monoecious and dioecious.
Inner membrane of the peristome obscurely 16-carinate at base,
divided above into numerous filiform segments, which are
united by fours at the apex.
92. TIMMIA, Hedw. (PL 3.)
Leaves narrowly lanceolate, recurved or spreading from a
long-clasping base, coarsely serrate above ; costa round, stout.
Calyptra narrow, cucullate. Capsule on a long thick pedicel,
horizontal or inclined, obovate-oblong, obscurely striate or
smooth, short-necked. Lid convex, papillate or depressed in
the middle. Annulus narrow. Spores very small.
1. T. m eg a p o litan a , Hedw. Monoecious : plants loosely
cespitose, bright green above : leaves deeply serrate from above
the clasping base, concave, cirrhate and fistulöse when dry;
inner perichætial leaves thin, ovate-lanceolate : male flowers 1
to 3 at the base of the female, short-pedicellate : calyptra long,
very narrow, often left attached to the pedicel or more rarely
persisting upon the capsule until ripe: capsule oval-ohlong,
horizontal, inclined or pendent, furrowed and erect when dry ;
lid orange ; segments appendiculate. — Muse. Frond, i. 84,
t. 31 ; Bryol. Eur. t. 407. T. cucuUata, Michx. EL Bor.-Am.
ii. 304.
H a b . Wet shaded banks, in woods; plains and mountains; not rare.
T. ciicuUata, Michx., differs from the normal form in the pedicels of
the antheridia a little shorter. It is an American variety.
2. T. A u str ia ca , Hedw. Dioecious : plants stronger and
longer ; leaves with a longer clasping dirty yellow base, more
solid, yellowish green, shining, serrate downward to the sheathing
border ; perigonial leaves clustered into a long sheath,
spreading at the apex : antheridia longer, shorter-pedicellate :
capsule on a long-pedicel, horizontal, oval-oblong, with a longer
collum, more solid, brown-striate, more distinctly costate when
dry ; lid highly convex, mamillate, orange-colored ; teeth longer ;
segments punctulate, not appendiculate. — Spec. Muso. 176,
t. 42 ; Bryol. Eur. t. 408.
H a e . Eocky Mountains of Colorado {E. Hall, Downie),
T ribe XIV. POLYTRIOHEÆ.
Plants very variable in size and appearance, of woody or
strong texture, often covering wide surfaces, dividing by basilar
innovations, or rarely from the apex, or in male plants from the
centre of the flowers. Leaves very solid, with an enlarged
costa, generally lamellate on the inside and with a thick serrate
margin. Flowers dioecious, rarely monoecious or bisexual;
vaginule long. Calyptra cucullate, naked, spinulose or villous,
often covered with long pendent hairs reaching to below the
capsule. Capsule long-pedicellate, erect or cernuous, cylindrical
or angular. Peristome simple, rarely none ; teeth 32 or 64,
rarely 16, linguiform, solid, confluent at base, formed of a multiple
stratum of thick-walled cells, their points adherent to the
disk-like apex of the columella. Spores very small.
9 3 . ATRIOHUM, Beauv. (PL 3.)
Densely gregarious or cespitose. Leaves not sheathing at
base, lingulate, undulate-crispate or twisted when dry, very