A. 
A. 
12 
mollusecum Bruch.—Carson, Raw. 
papillosum Lindb.—LvuzERNE, Frenchtown, Raz. 
rigidum (Nees) Schimp.—LUZERNE, Frenchtown, Raz; 
PHILADELPHIA, Fairmount Park, James. 
rigidum laxum Austin.—LvUzERNE, Frenchtown, Raz. 
rigidum squarrosum Ross.—NORTHAMPTON, LEHIGH 
and LUZERNE, Raz. 
squarrosum Pers.—PIKE and CARBON, Kau; MONROE, 
Porter; LANCASTER, Smithville, Small; HUNTINGDON and 
CampBria, Porter. 
strictum Lindb.—Monror, Pocono plateau, James and 
Garber; PIKE, LUZERNE and CARBON, Rau. 
subsecundum Nees.—MOoNnrROE, Pocono plateau, /ames; 
CARBON and LEHIGH, Rau. 
subsecundum contortum (Schultes) Schimp.—LANcas- 
TER and LEBANON, Mt. Hope, Smadd. 
ANDREAEALES. 
ANDREAEACEAE. 
Andreaea Ebhrh. 
erassinervia Bruch.—On rocks. Carson, Stony Creek, 
Rau. 
petrophila Ehrh.—On dry rocks. Carson, Stony Creek, 
Rau. 
Rothii Web. & Mohr.—On rocks. Monror, Water Gap, 
Austin; CARBON, Stony Creek, Raw. [A. rupestris Roth. ] 
ARCHIDIALES. 
ARCHIDIACEAE. 
Archidium Brid. 
Ohioense Schimp.—LancastEr, along the Tucquan 
Creek, Porter. Very rare. 
