681 
HEPATIC JE. (LIVERWORTS.) 
(suture absent) rupturing- irregularly. Columella linear. Elaters 
wanting. Spores produced in fours. Inflorescence monoecious : 
antheridia globular, immersed in the frond; which is orbicular, 
laciniate, tender, papulose-reticulate, undulate-crisped on the mar¬ 
gin, with dark-green oval grains (gemmae) scattered within its 
substance. (Mem. Amer. Acad. 3, n. ser ., p. 64, t. 4.) (Name 
formed of vebros, back , and 6v\as, a purse or bag; from the shape 
of the involucre on the back of the frond.) 
1. N. valvata, Sulliv. Frond 3"-8" wide; involucre hori¬ 
zontal, elongated, tapcring-deflexed ; capsule elongated-cylindrical, 
somewhat curved, with a dark-colored suture; spores light yellowish- 
brown. (Muse. Alleghan. No. 289.) — Moist ground, Central Ohio. 
2. N. llielaiiospora, Sulliv. Capsule without any suture; 
columella with short hooked appendages; spores dark brown, larger 
than in the preceding species, which in other respects it resembles. 
(Muse. Alleghan. No. 290.) — Grows in the same localities. 
3. ANTHOCEROS, Micheli. Anthoceros. 
Involucre tubular. Perianth none. Calyptra conical, with a 
nearly sessile stigma. Capsule narrowly linear, siliquaeform, 2- 
valved, peduncled, with a free central columella. Elaters flexu- 
ous, the spiral fibre imperfect or none. Spores minutely muricate. 
Inflorescence monoecious: antheridia sessile in a cup-shaped in¬ 
volucre, on the back of the frond. Vegetation frondose, orbicular, 
radiate, lacerate, with immersed gemmae as in Notothylas. (Name 
formed of avdos, a blossom, and icepas, a horn ; from the shape of 
the involucre and capsule.) 
I* A. punctatus, L. Surface of the frond papulose-reticulat¬ 
ed; involucre erect, cylindrical, the mouth obliquely truncate, scari- 
ous. — Wet slopes and sides of ditches. 
2- A. l<t>vis, L. Surface of the frond smooth; mouth more 
broadly scarious. — In similar places. 
Suborder III. MARCHANTIACEiE. True Liverworts. 
Frondose and terrestrial perennials, growing in wet pla¬ 
ces, with the fertile receptacle raised on a, peduncle, capitate 
or radiate, bearing pendent calyptrate capsules from the 
under side, which open variously, not 4-valved. Elaters 
with 2 spiral fibres (in No. 7 sometimes with only one). 
