49 
AMPTON, Bethlehem, Raz; PHILADELPHIA, Pennypack 
_ Creek, James; HUNTINGDON, Porter; CAMBRIA, Cresson 
and Johnstown, James. 
A. irriguum spinifolium (Schimp.)—In and around lime- 
stone springs. FRANKLIN, Mercersburg, and LANCASTER, 
Lititz, Porter ; NORTHAMPTON, Raw. 
A. Juratskanum Schimp.—In damp places. NorrHamp- 
TON, Bethlehem, Raz. 
A. Kochii Br. & Sch.—In springy places. McKean, Bradford, 
Burnett. 
A. Leseurii (Sull.) Aust.—On wet, shaded rocks. LUuzERNE 
and Carson, Rau, NORTHAMPTON, on the Bushkill Creek, 
LANCASTER, near the Buck Tavern; YORK, opposite Mari- 
etta, Porter; PHILADELPHIA, Wissahickon, James. 
A. minutissimum (Sull. & Lesq.) Jaeg. & Sauerb.—On 
limestone rocks. NORTHAMPTON, Easton Cemetery; Lan- 
CASTER, Cedar Hill, and Huntinepon, Alexandria, Porter. 
A. riparium (L.) Br. & Sch.—In rivulets and standing water. 
MonroE, James; NORTHAMPTON, Bethlehem, Raz, Easton, 
Porter; PHILADELPHIA, Wissahickon, DELAWARE and 
CHESTER, James; LANCASTER, Lititz Springs, and FRANK- 
Lin, Mercersburg, Porter. 
A. serpens (L.) Br. & Sch.—On logs, rocks and the ground. 
NorTHAMPTON, Bethlehem, Rau, Easton, Green ; PHILA- 
DELPHIA, Bustleton, Manayunk, Byberry, DELAWARE, 
Radnor, and CHESTER, James; LANCASTER, Dillerville 
Swamp, Porter, Conewago, Small. 
A. varium (Hedw.) Lindb.—Wet ground and rocks. MONROE, 
Water Gap, james, NORTHAMPTON, LEHIGH, au ; 
Bucks, Rau, PHILADELPHIA, Woodlands, Manayunk, Wis- 
sahickon, Tacony, Bustleton, DELAWARE, Radnor, and 
CHESTER, Chester Valley, James; HUNTINGDON, Spruce 
Creek, Porter; CamBRIA, James; YORK and LEBANON, 
Porter ; McKean, Burnett. ([H. orthocladon Brid.] 
