1^
' Vi
costate ; areolation loose, uniform, liexagonal-rliomboidal, slightly
chlorophyllose. Flowers monoecious, gemmiforrn. Calyptra
very thin, irregularly lacerate. Capsule globose, sessile. Spores
few, larger than in any other moss, ^ m.m. in diameter, smooth.
1. A. Ohioense, Schimp. Monoecious: stems filiform;
leaves spreading, subulate by the excurrent costa, serrulate
above ; perichætial leaves broadly lanceolate, narrowed into a
long point, costate : capsule globose, on short lateral branches ;
spores 16 to 20, angular, smooth. —• Bryol. Eur. Arch. 3 ; Sulliv.
Mosses of U. States, 14, and Icon. Muso. 16, t. 7 ; Sulliv. à
Lesq. Muse. Bor.-Am. Exsice. n. 28. A. phascoides, Sulliv.
Muse. Allegh. n. 213.
Var. Donnellii. More robust, yellowish green ; leaves thin,
subscarious ; areolation less distinct ; male flowers more generally
terminal. — A. PonneUii, Austin, Bull. Torr. Club, vi.
190.
Hab. Meadows and waste fields, Central Ohio and Northern Alabama.
The variety in Florida {J. Donnell Smith).
2. A. ten e rrim um . Mitten. Differing from the last, especially
in the hypogynous inflorescence, the antheridia being
placed in the axils of one or two small leaves at the base of the
perichætial ones, as in the Eurojiean A.phascoides, Brid.; the cells
of the areolation are much shorter, closer and firm.—^ Journ.
Linn. Soc. viii. 17. A. phascoides, Drumm. Muse. Am. (Coll.
11.), n. 11.
4 coming shorter and nearly quadrate at base; costa stout,
V excurrent into a smooth awl-shaped point : male flowers in the
: axils of perichætial leaves. — Proc. Am. Acad. xiv. 134.
H a b . Louisiana (Drummond).
8. A. Ravene lii, Aust. Synoecious: plants much divided
below : lower leaves distant, very small, ovate and appressed,
or larger and open, the upper closely imbricate-tufted or pressed
together in gemmules, ovate-lanceolate, distinctly acuminate or
acute or obtuse, very entire ; costa vanishing below the apex or
excurrent into a short point ; areolation very loose, round, oval [
or rhomhoidal, slightly longer and broader toward the base. — '
Bull. Torr. Club, vi. 145.
Hab. South Carolina (Bavenel) ; Florida (J. Donnell Smith). ]
4. A. longifolium, Lesq. & James. Synoecious: cespitose,
sometimes in compact tufts, yellowish green ; stems short, i;
slender : leaves long and narrow, open, flexuous, narrowly i
lanceolate-subulate; areolation in long quadrangular cells, he- '
IlAB. Florida (Garber), in fine copiously fruiting specimens.
5. A. Hallii, Aust. Monoecious, the male flowers terminal
. on a distinct branch ; leaves with a very loose areolation and
the margins often obscurely recurved ; costa often long-excur-
' i-ent. —Bull. Torr. Club, vi. 145.
Hab. Texas (E. Ball). This species is not satisfactorily known.
B. STEGOCARPl. — Capsules opening in the upper part by
a dehiscent lid.
T e ib e 11. WE1S1EÆ.
Plants cespitose, sometimes very small, generally of medium
size. Leaves simply costate ; areolation opaque, composed of
: parenchymatous cells, small, punctiform or quadrate and generally
papillose in the upper part of the leaf, larger, obloiig-
hexagonal and pellucid or chlorophyllose at the enlarged base.
Capsule solid, generally exserted upon a more or less elongated
: pedicel, rarely immersed, erect or curved, sometimes mclined or
' pen lent, subcylindrical, with a short collum or none. Lid
rostrate. Peristome simple or none ; teeth flat, entire or bifid.
Calyptra cucullate.
1. Peristome none.
10. ASTOMUM, Hampe.
Plants small, simple or branching. Upper leaves longer,
tufted, linear-lanceolate, curling. Flowers monoecious. Capsule
erect, symmetrical ; lid distinctly formed but not easily
detached. — Systegium, Schimp.
1. A. c risp um , Hampe. Stems short, branching: lower
leaves very small, narrowly ovate, the upper linear-lanceolate,
densely tufted, minutely papillose on the back, críspate when
dry ; costa round, excurrent into a short point, borders involute
: capsule globose, short-pedicellate, immersed; lid short