286 PLANT LIFE OF ALABAMA. 
Subkingdom BRYOPHYTA. 
Class HEPATICAE. Liverworts. 
Family RICCIACEAE. 
RICCIA L. 
Riccia lutescens Schw. 
Muddy banks, lower Alabama. Monroe County. . ; 
Louisianian to Alleghenian area. Louisiana, Illinois, Pennsylvania, Minnesota, 
Untario. 
Riccia lamellosa Raddi. 
On damp exposed banks. Mobile County, fide Austin. : ; 
Louisianian to Alleghenian area. New Jersey, Canada, California. Southern 
Europe (ltaly). 
RICCIELLA Bisch. 
Ricciella fluitans (L.) Bisch. 
Floating in stagnant pools and shaded ditches. Mobile County ; March. 
Louisianian to Alleghenian area. East United States to Ontario. Europe. 
Family MARCHANTIACEAE. 
REBOULIA Raddi. 
Reboulia hemispherica (L.) Raddi. 
Shady banks of streams. Lee County, Auburn (Baker J: Earle). 
Carolinian area. [llinois, Ohio, Pennsylvania. Central Europe. 
ASTERELLA Beauv. 
Asterella tenella Nees. 
ane borders of fields, copses. Mobile County. Lee County, Auburn (Baker § 
Karle). 
Louisianian to Alleghenian area. Maryland, central New York, Nebraska, British 
Columbia (Vancouver Island). : 
CONOCEPHALUM Wiggers. 
Conocephalum conicum (L.) Dumort. Tegatella conica Corda. 
Shaded damp banks. March, April. 
Louisianian to Alleghenian area. Louisiana to Nebraska, British Columbia, and 
Alaska, Europe. 
DUMORTIBRA Nees. 
Dumortiera hirsuta Nees. 
Shady damp rocky walls. Winston County. Not infrequent in the so-called rock 
houses of the Mountain region. 
Carolinian area. North to Pennsylvania. 
MARCHANTIA L. 
Marchantia polymorpha L. 
On damp ground over the State. Throughout the continent to Alaska. Enrope. 
Cosmopolitan from warmer to frigid zones. 
Marchantia disjuncta Sulliv. 
Springy places. Monroe County. Claiborne County, bluff of Alabama River 
(Sullivant, 1853). Lee County, Auburn (Underwood). Mexico, Huatusco, 5,000 feet 
altitude (Mohr). 
