HEPATIC. (LIVERWORTS.) 87 
the apex, persistent. Capsule oblong-globose, dehiscing by 4-6 irregular 
eer eg pedicel short. Spores muriculate. Elaters very long, attenuated ai 
eac Antheridia immersed in short-peduncled disk-like receptacles 
(Maied for B. C. Dumortier, a Belgian ist. 
1. BD. hirstita, Nees. Diccious; frond 4’-6' long, 6!’-10" wide, fork- 
ing, thin, deep green; fertile receptacle and involucres and margin of the male 
disk hairy ; i chaffy at the apex.— Faces of rocks, Southern States, 
The largest of our Marchanties : fruit rare. (Tab. 20.) 
8. FEGATELLA, Raddi. Great Liverworr. (Tab. 20.) 
Fertile receptacle conical-mitriform, membranaceous. Involucres 5-8, tubu- 
lar, 1-fruited, suspended from the apex of the peduncle, coherent with the inte- 
rior mee of the receptacle, and with each other, opening at the lower end by 
lit. rianth none. Calyptra persistent, bell-shaped, 2-4 lobed at the apex. 
Pe es ae by 5-8 revolute segments, deciduous with 
Spores ic 
its short pedicel. ulate. laters short and thick. Inflorescen 
dicecious. theridia area in sessile oval disks, near the apex of the frond 
Frond st conspicuously reticulated, with a narrow distinct midrib. (A 
personal na 
tos ae Corda. Fronds 3!-6/ long, 5'’- 9" wide. — Springy places. 
Among the largest of our Hepatic: seldom seen in fruit. (Tab. 20.) (Eu.) 
9 REBOULIA, Raddi. (Tab. 20.) 
Fertile receptacle conic-hemispherical or flattened, 4-5-lobed. Involucres 
ite re 
ridia immersed in sessile cok paleages disks. Frond rigid ; the midrib broad, 
strong, and distinct. (Named for £. Reboul, an Italian botanist.) 
1. BR. ae Raddi. Frond forking, and increasing by joints 
from the extremities, green above, purple beneath ; the peduncle bearded at its 
base and apex ; fertile receptacle papillose on the summit. — Hilly districts, in 
shady moist places. ( 20.) (Eu.) 
2. R. microcéphala, Taylor. eRipecene from the preceding (of 
which it may be a form) by the more delicate texture of the frond, and by the 
gore Gen size of all its parts, except the lick which is very ag (3’-4'), 
with broader palew at its base and apex. — Pennsylvania, 
10. GRIMALDIA, Raddi. (Tab. 21.) 
Fertile receptacle hemispherical or conoidal, 3-4-lobed. Involucres 3-4, 
each a distention of an entire lobe of the receptacle, and opening by a cleft 
below, I-fruited. Perianth none. Capsule globose, filling the involucre, dehis- , 
cing by a circumeissile line near the middle. Calyptra persistent at the base of 
the capsule. Spores rugose, with a transparent border. Moncecious or die- 
