25 
W. ulophylla Ehrh.—On trees. Monrog, Tobyhanna, Gar- 
ber; Pocono, James; NORTHAMPTON, Bethlehem, Raz, 
Easton, Porter; CHESTER (Flora Cestrica); LANCASTER, 
Chickies, LEBANON and CENTRE, Bear Meadows, Porter, 
CLEARFIELD, James. [Ulota crispa Brid.] 
W. wlophylla crispula (Bruch) Hammar.—On trees. PIKE, 
Rau, MONROE, Pocono, and PHILADELPHIA, James, Mc- 
KEAN, Burnett. 
Orthotrichum Hedw. 
O. cupulatum Hoffm.—On rocks. NortTHampton, Easton, 
and Bucks, Narrowsville, James. 
O. cupulatum Peckii (Aust.) Sull—On dry limestone rocks. 
NORTHAMPTON, Easton, Porter. 
O. Porteri Aust.—On dry limestone rocks. NORTHAMPTON 
and LANCASTER, Porter; CamBRIA, Cresson, James. [O. 
cupulatum Portert (Aust.) Sull.] 
O. obtusifolium Schrad.—Monroeg (on Populus candicans) 
Mrs. Britton; NORTHAMPTON, Bethlehem, Raz; PHILA- 
DELPHIA, on Lombardy poplars below Bustleton, James. 
O. Ohioense Sull. & Lesq.—LeEHIGH and NorTHAMPTON, 
Bethlehem, Raz. 
O. Ohioense citrinum (Aust.) Lesq. & James.—On _ trees. 
NORTHAMPTON, Bethlehem, Rau; LANCASTER, Po ter, 
WESTMORELAND, /ames. 
O. pusillum Mitt.—On trees, poplars mostly. PHILADEL- 
PHIA, Kingsessing, Fairmount Park, Bustleton, /ames. 
[O. pstlocarpum James. ] 
O. pumilum Americanum Venturi.—On trees. NorTu- 
AMPTON, Porter; PHILADELPHIA, /ames; LANCASTER, 
Porter. 
0. Schimperi Hammar.—On trees. LancasTER, Safe Har- 
bor, Conewago and Tucquan, Small, WasHINGTon, Linx 
and Szmonton. 
