108 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 
Didymodon Hedw. 
Didymodon rubellus (Hoffm.) Br. & Sch. 
Wet, usually calcareous rocks, in mountainous or hilly re- 
gions. Summer. LitcHFieLtp: Salisbury, Nichols. Tot- 
LAND: Bolton, Nichols. New Haven: Woodbridge (1879), 
J. A. Allen. 
Alaska, Canada, and the northern United States; Europe; 
Asia; Africa ; Tasmania. 
Barbula Hedw. 
Leaves gradually acuminate, midrib percurrent...... B. fallax 
Leaves obtuse and mucronate, midrib excurrent..B. unguiculata 
Barbula fallax Hedw. 
Moist earth, walls, and rocks, in limestone districts. Nov.- 
Jan. LircuFtetp: Salisbury (1905), Nichols. 
Canada and the northern United States, north to the arctic 
regions; Europe; Asia; Africa. 
Barbula unguiculata (Huds.) Hedw. 
On all sorts of earth formations. Winter. LITCHFIELD: 
New Milford, Nichols. New Haven: East Haven and New 
Haven (1855), Eaton; Orange and Oxford, Harger; Walling- 
ford, Evans; Woodbridge, J. A. Allen. 
Probably throughout the northern United States and Can- 
ada; Europe; Asia; Africa. 
Rer. Eaton, 15, 62. 
Acaulon C. Mill. 
Acaulon muticum (Schreb.) C. Mill. Spherangium mu- 
ticum Schimp. 
Clay or earth in fields. Spring. New Haven: Hamden 
(1878), J. A. Allen; New Haven, Eaton; Orange, J. A. Allen. 
Probably throughout temperate North America; Europe; 
Africa. 
Rer. Eaton, 15, 61. 
Phascum L. 
Phascum cuspidatum Schreb. 
On earth in fields and grassy places. Spring. NEw 
