HEPATICE. (LIVERWORTS.) (85) 685 
3. ANTHOCEROS, Mich. Hornep Liverworr. (Tab. VL) 
Involucre tubular. Calyptra conical, with a,subsessile stigma. Caps 
arrowly linear, siliqueeform, 2-valved, exsertly- pediée elled. Spores muriculate. 
antheridia dorsal, sessile in a cup-shaped involucre.— Frond orbicular-radiate, 
lacerate, with immersed gemme as in Notothylas. (Name formed of avOos, 
eo and képas, a horn; from the shape of the involucre.) 
. A. punctatus, L. Frond deep green, 5-8" in diameter, margins 
die, crenate, tite surface papulose-reticulated ; involucre erect, cylindrical, 
with a scarious ne obliquely truncate mouth. — Wet slopes, sides of ditches, 
&e. (Eu.) 
I . L. Larger than the preceding species ; surface of frond 
hetoth,; ck “of the involucre more broadly scarious. — In similar places. 
(Tab. VL.) (Eu.) 
3. A. Lacimiatus, Schwein. A still larger species ; e frond more la- 
ciniated, its surface smooth: distinguished from No. 1 “ons 2 mainly by th 
bilobed mouth of its. involucre. ise gravelly places, Southern States : uk 
ing patches a foot or more in 
4. NOTOTHYLAS, Sulliv. (Tab. VI.) 
Involucre a protusion of a portion of the upper stratum of the frond, opening 
irregularly at the apex. Calyptra vanishing early. Capsule closely invested 
by the involucre, rapt en tents subcompressed or ovate-cylindrical, slightly 
pedicelled, either 2-valved from the apex "half “way down, or rupturing irregu- 
larly. Columella linear. rier wanting. Spores roundish, smooth. Inflo- 
ious : idia i d.— Frond orbi 
rescence moncecious a immersed in the fro orbicular, 
laciniate, papulose-reticulated, undulate-crisped at the margin, and with dar! 
m scattered within its substance. (Mem. Amer. 
Acad. n. ser. 3, p- . 4, (Name formed of véros, the back, and budds, 
a purse or bag ; from a pie: of the involucre and its position on the back of 
the frond.) 
ie vay salvar: sige — Wier “pi —s myauere horizontal-elon- 
d, tap l-incurved, 2-valved 
bei a dark- sotored suture ; ports ns light ai paarg brown. (Muse. Alleghan. No. 
289.) — Moist ground, Central Ohio. 
2. N. melanéspora, Sulliv. Capsule often rie any suture ; colu- 
mella with short hooked appendages; spores dark sesh larger than in the 
preceding, which in other respects it resembles. — Gro in similar localities. 
(Muse. All No. 290.) 
3. N. ularis, Schwein., noel ve herd nearly erect; capsule 
anug daa subecompressed, t ent or obscure : somewhat 
smaller than the others. —On the silieidt a thoats Carolina, Schweinitz: Penn- 
sylvania, Lesquereux. 
58 
