652 (52) MUSCI. (MOSSES.) 
short-pointed from a convex base, and deciduous with the columella attached ; 
' calyptra small, mitriform, 4 —5-lobed at the base. —(P. sphericum, Muse. Alle. 
ghan., No. 196.) —Banks of the Ohio River subject to inundation. — A minute 
annual : length of the whole plant 2-3". (Tab. IV.) 
3. P. tetragonum, Br. & Sch. Stems gregarious, scarcely 1! high; 
- leaves connivent, ovate-lanceolate, acuminate, the costa ceasing at the apex or 
excurrent ; capsule globose-pyriform, on an erect pedicel (1 high), wide- 
mouthed when dry ; operculum convex, apiculate ; calyptra very large, twice as 
long as the capsule, fusiform, 4-sided, splitting on one side.— On the ground, 
an Marcos, Texas, Wright: Vincennes, Indiana, Lesquereux. (Eu.) 
56. APHANORHEGMA, Sullivy. (Tab. IV.) 
Calyptra small, campanulate-mitriform, lobed at the base. Operculum hemi- 
spherical, apiculate. Capsule immersed (including the operculum), spherical, 
i 0 cious 0 - 
nearly sessile, exannulate. Peristo fl mon 
maphrodite: paraphyses globosely distended at the by its 
feeble dehiscence, globose capsule, and the characters : — ion, forming 
intermediate link between Physcomitrella among Cleistocarpous, and Phys- 
ores iceray among i Mosses. (Name i adavns, unapparent, 
and piyypa, rupture, or suture ; dehiscence obscure.) 
1. A. serrata, Sulliv. Stems 2"-3! high, simple or innovating from 
two equal portions ; antheridia (occasionally intermixed with a few archegonia) 
in the axils of the pericheetial leaves, usually naked, sometimes bir: 1 or 2 
small oe ae leaves. — (Sulliv. in Mem. Amer. Acad., n. ser. 4, p 2.)— 
Damp soil, New England to Ohio .— Strikingly like pecs te 
dats mainly by its feeble eS and the denser texture o: 
outer wall of the capsule. (Tab. IV.) 
Trise XXII. SPLACHNES. 
57. SPLACHNUM, L:,Br.& Sch. Umpretza-Moss. (Tab. IV.) 
Calyptra small, conic, entire or uneven at base: operculum convex or 
mammillate. Capsule erect, obovate-oblong or wecheustih cal, with a very large 
spongy and differently colored obovate, globose or caineiatiicas apophysis, 
in pai en 
termin: 
nized an the exceedingly large apophysis of the capsule ; emp hewn 
only on the dung of herbivorous animals; stems innovati m below 
the Tie apex, dichotomous, of a succulent soft texture ; em sata 
taper-pointed, thin and delicate, with large loose, oblong, cca nal areolz ; 
costa slight, ceasing below the point. ackivevee, a name used by Dioscorides 
plant.) 
4Ul SvViuiU JIPYs 
