— 404 — 
cellate capsule. + Eur. Sweden: Berggren. Engl.: Rogers. France: 
Brébisson. Austria: Schmidt. Amer. »U. S., Calif»: Lesq. et J. 
* Ph.minus (Hooker et Taylor, as variety) Jæger. — Ph. muti- 
eum var. minus H. T. Acaulon Jeger; Phascum Kindb. 
. Smaller in all parts.» Perichetial leaves entire scarcely rea- 
ching above capsule. — Eur. r. »France and Engl.»: Limpricht. 
* Ph.rufescens Jeger. — Acaulon. Jeg.; Phascum  Kindb.; 
Spherangium Lesq. et Jam. 2 
»Leaves mostly not revolute. Pedicel of capsule sometimes 
curved. — Amer. U. S. very common in eastern and central 
States»: Lesq. et Jam. ; 
2.Ph.mediterraneum Limpricht. — Acaulon Limpr.; Braith- 
waite; Phascum Kindb.; Acaulon Holtii Lindb. in litt. . 
"Leaves ‘smaller and narrower than in Ph. muticum, entire, 
gen: not recurved; cells smaller. Perichetial leaves unequal in 
length; the upper one much longer, wholly convolute and nearly 
entire. Capsule mamillate; pedicel indistinct. — Eur, r. Eng- 
land: G. A. Holt. ; 14] 
b. Leaves carinate; costa excurrent. | 
3.Ph.triquetrum Spruce. —  Acaulon ©, M. Spherangium 
Schimper. ` lofud } 
Leaves suboval subacute; borders recurved and sinuolate often 
nearly. all) around; costa excurrent to a short deflexed point. 
Inner perichetial leaves us. 3 of same length. Pedicel of cap- 
sule curved. Plant resembling a triquetrous bud. — Eur. 
Austria: Breidler; Schmidt. France: Goulard, com. Husnot. 
Amer. Can.: Drummond, com. Macoun. i 
. *Ph.piligerum Notaris. — Acaulon Limpr. HET. 
Leaves with long-excurrent- costa. — Eur. »ltaly»: Notaris. 
= B. ‘Leaves papillose on- both sides; costa not evolute in 
lower part, long-excurreht. . feo :9s0d ola. 
 4Ph.Schimperi ^Sulivant. —  Acaulon Sully ieon. muse; - 
Spherangium Lesq. et Jam. acim 34 = 
Upper leaves concave, serrulate and’ recurved above, subovate - 
with narrow. subulate patent or deflexed. point.» Perichetial 
: leaves subobovate not. convolute. Capsule mamillate; pedicel 
curved.: —. Amer. »U. S; r.»: Sull. Hinde 
Il. Aschisma Lindberg. : idag 
5.Ph.earniolieum Weber et Mohr. j Ios 
o Upper leaves coacave oblong-lanceolate subobtuse, not close 
when moist; upper cells green round-quadrate, lower hyaline 
short-rectangular. Capsule ‘subglobose; pedicel very short. Plants 
