HEPATICZ. (LIVERWORTS.) ~ 85 
3. ANTHOCEROS, Mich. Horyep Liverworr. (Tab. 20.) 
Involucre tubular. Calyptra conical, with a subsessile stigma. Caps’ 
narrowly linear, siliqueeform, ehehiesds ami pedicelled. Spores muriculate. 
Elaters flexuous, the spi perfect or none. Inflorescence moncecious : 
antheridia dorsal, sessile in a eisabibal tabaiicie Freed orbicular-radiate, 
lacerate, with ‘immersed gemmz as in Notothylas. (Name formed of dv@os, 
a blossom, and Képas, a horn; from the shape of the involucre.) 
1. A. punctatus, L. Frond deep green, 5-8" in ae margins 
plicate, crenate, the surface papulose-reticulated ; involucre cylindrical, 
with a scarious and obliquely truncate mouth. — Wet ibe se of ditches, 
&c. (Eu.) 
Ss, L. Larger than the preceding species ; surface of frond 
mooth ; mouth of the involucre more broadly scarious.— In similar places. 
(Tab. VIL) (En.) 
3. A. laciniiatus, Schwein. A still larger species; the frond more la- 
ciniated, its surface smooth: distinguished from No. 1 and 2 mainly by the 
bilobed mouth of its involucre.— Wet noes velly places, ‘wean States: form- 
ing patches a foot or more in diamet 
4. NOTOTHYLAS, Sulliv. (Tab. 20.) 
Involucre a protusion of a portion of the upper stratum of the frond, opening 
j 
as 
=. 
od 
— 
ck 
& 
B 
& 
ils, a tthe Blatrs wanting. Gea cont, smooth. Inflo- 
s mo 
laciniate, “pulses, undulate-crisped at the margin, and with dark 
gree 1 grains (gemme) scattered within its substance. (Mem. Amer. 
Acad. n. ser. 3, p. 64, t. 4. (Name formed of v@ros, the back, and OvAas, 
a purse or bag; from the shape of the involucre and its position on the back of 
the frond.) 
1. N. valvata, Sulliv. — a _— involuete hee 
gated, epi amepe cap ed 
ed a dark-colored suture ; spores light ii NS (Muse. ie pn 
289.) — Moist ply Central Ohio. (Tab. 
2. N. melandéspora, Sulliv. Capsule often without any suture ; 
mella with short hooked appendages; spores dark brown, a than in he 
preceding, which in other respects it resembles. — Grows in 
— Alleghan. No. 290.) 
N. orbicalaris, Schwein., Sulliv. Involucre nearly erect; capsule 
dimeuie aa subcompressed, the suture evident or obscure : somewhat 
smaller than the others.—Qn the ground, North Carolina, Schweinitz: Penn- 
sylvania, Lesque eux. 
