&c.; common; ripens its fruit (which is scarce) in October and November.
(Tab. II.) (Eu.)
2. Li. m im t s , Ilampe. Besides numerous discrepancies, singly of not
much importance, this species differs from the last in its much smaller size, its
preference for dry localities, and tho time (May and June) of ripening its fruit.
— On the ground, dry woods; not rare. (Eu.)
T k ib e VI. F I S S I D l iN T E i E .
1 7 . F i S S I D E Y S , Hedw. (Tab. I.)
Ciilj-ptra cuculliform, or conic-mitriform. Capsule oval or oblong, erect or
cemuous, rather long-pcdicellate. Operculum conic-rostrate. Poristomo single :
teeth 16, gcniculate-iuflexcd: — otherwise as in Dicranum. Inflorescence viirious.
— Erond-liko plants; the leaves exactly two-r.auked, inserted on opposite sides of
tlio stem, their proper lamina infolded-boat-shapcd, producing from the keel tin
eqnitant blade, wliich forms the principal portion of the leaf; areolation minute,
hexagonal-rotund. (Name from the Latin Jissus, split, and dens, a tooth.)
* Fruit terminal.
1. F . l i y a l u m s , Hook. & Wils. Stems l " - 2 " high, erect, simple;
leaves oblong-lanceolate, acute, without any costa; areolation large and hyaline;
capsule erect, oval; calyptra conic, entire a t the biise. — Damp earth, in
shady woods, near Cincinnati, Ohio : found only by the late T. G. Lea.
2. F . o b t u s i f d l i n s , Wils. Stems simple, 2 " - 3 " high; leaves oWong-
oval, very obtuse, costate nearly to the apex; capsule obovatc-oval; operoulnm
convex-conic, with a very short rostnim; spores largo; calyptra cuculliform:
dicecious; male flower terminal. — Wet and shaded rocks, near rivulets; Central
and Southern Ohio.
3. F . e x i ^ I I S , Sulliv. Size, inflorescence, and calyptra as in the last;
loaves oblong-lanceolate, costa ceasing near the a p e x ; capsule oval, somewhat
oblique; operculum rather short-rostrate. — Damp rocks in shaded ravines, &c.;
common.
4. F . m i n u t u l n s , Sulliv. Size, inflorescence, and calyptra as in tho
two preceding species; leaves linear-lanceolate, with a transparent wavy border
; costa vanishing near the summit; capsule oval, erec t; operculum rather
long-rostrate.— With the last.
5. F . b r y o i d e s , Hedw. Somewhat larger than tho last three; capsule
and operculum same as in No. 4 ; leaves oblong-lanceolate, with a tlnckoncd
border; costa excurrent; calyptra cuculliform: moncecious; male flowers numerous,
axillaiy. —Moist and shaded banks. (En.)
6. F . B a v e n l i l i i . Sulliv. Size, calyptra, and inflorescence as in No. 2 ;
lea-cs linear-lanceolate, costate to the apex, subpapillose, repand-dcntate on tho
pellucid margins of the true lamina, denticulate on the blade; areolation minute,
opaque; capsule cUiptic-oblong, papillose. (Mem. Amer. Acad., n. ser., 4, p.
171, t. 2.) — Damp ground, S. Carolina, Bavend, Curtis.
7. F . o s m n n d i o i d o s , Iledw. Stems erect, I ' - I J ' high, branched;
leaves oblong, obtuse, apiculate, the costa vanisliing near tho apex; capsule
oval-oblong, erect or oblique ; operculum long-rostrate ; calyptra subulate from
a mitriform lobed base; inflorescence as in No. 2. — Ou the roots of trees, in
swamps. (Eu.)
* * Fruit axillary.
8. F. s u b b a s l l à r i s , Hedw. Stems 5 " -1 0 " high, densely cæspitoso,
riidiculose, branched ; loaves elongated-oblong, obtnso, apiculate, eroded-denticulate
at the summit, near which the costa vanishes ; capsule erect, oval-ohlong
on a pedicel arising from near tho base of the stem; operculum long-rostrate ;
calyptra cuculliform. — On decayed logs and trees, near the ground.
9. F. t a x i f ô l i i i s , Hedw. Stems .5 "-8 " high, branched and fasciculate
from tho base ; loaves elongated-oblong, minutely denticulate on tho subpellu-
cid margin, obtuse ; costa shortly e.xcurrent ; capsule oblong or obovate, mcliuod
or horizontal; operculum, calyptra, and origin of the pedicel as iu the last:
monoecious; male flower gemmiform a t the base of the fertile stem.—-Woods,
in sandy soil. (Tab. I.) (Eu.)
10. F. a d i a n t o l d c s , Hedw. Stems much branched, l ' - 8 ' long; leaves
ohlong-lanceolate, serrulate, 2 or 3 rows of the marginal cellules transparent;
costa percurrent ; capsule oval-oblong, inclined ; pedicel from the middle of the
stem ; operculum and calyptra as in No. 8 ; inflorescence as in No. 5. — Shaded
moist places, on tho ground, and on wet rocks. (Eu.)
H . F. polypodioidcs, Hedw. Stems broad, 1' - 2' high ; leaves ovate-
or elongated-oblong ; costa vanishing a t the subdenticulato obtuse apex ; capsule
obovate-oblong ; operculum subulate-rostrate from a large rather hemispherical
base ; pedicel short, flexuous, arising from the upper part of tho stem ; calyptra
cuculliform: dioecious. — Wet rocks, Gmrgiii, Lesquereux.
12. F. g i r i t n d i f r o n s , Brid. Stems erect, 2 ' - 3 ' Iiigh, sparingly branched;
leaves linear-lanceolate, thick, composed of several strata of cellules, the costa
ceasing below tho apex ; fertile flower gemmiform, axillary, containing 3 0 -6 0
archegonia; male flower and fruit unknown.—Niagara Fails (American side),
on the perpendicular faces of rocks, moistened by the spray. (En.)
1 8 . C O n r O M l T B I F i r i , Montagne. (Tab. I.)
Calyptra small, conic, nearly entire a t the base. Operculum conic, long-
rostrate. Capsule ohconic, short-pedicellate, termmal on short axillary branches.
Peristome single : teeth 16, short, truncate, irregularly divided or perforated.
Inflorescence monoecious: male flower gemmiform, axillary. — Slender and
iloxiie pl:mts, growing in water, with tho habit of Fontinalis, but the leaves con-
stracted as in Fissidens. (Composed of a cone, and pirpiov, a cap, or
calyptra.)
I. C . J l l l i i i i i n n i , Mont. Stems 2 '- 5 ' long, filiform, floating, much
divided; leaves distant, linear-kanceolate, acute, costatc to the -apex; capsule
ohconic, topcring into a short pedicel, tho two together sciirccly longer tlian tho
operculum, whoso rostrum only is covered by the calyptra. — Ohio and southward,
attached to stones in shallow brooks, &c. (T a b .I.) (Eu.)
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