162 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 
Haven, Evans; Hamden (1855), Eaton. Mipptesex: Killing- 
worth, Nichols. 
Newfoundland to Georgia, west to the Rocky Mountains ; 
Europe; Asia; Africa. 
Rer. Eaton, 15, 67. 
Ptilium (Sull.) DeNot. 
Ptilium Crista-castrensis (L.) DeNot. Hypnum Crista- 
castrensis L. 
On moist earth and rotten logs in mountainous or hilly 
woods. Fruit occasional, autumn. LitcHFIELD: Cornwall, 
Brewster; Norfolk, Eaton; Salisbury, Nichols. HARTFORD: 
Hartford, Mrs. Lowe. WinpHAM: Canterbury, Mrs. Hadley. 
New Haven: East Haven and Hamden, Eaton; Oxford, Har- 
ger; Woodbridge (1875), Eaton. NEw Lonpon: Groton and 
Montville, C. B. Graves; Norwich, Setchell; Preston, C. B. 
Graves. 
Arctic America, Canada, and the northern United States, 
south in the east to North Carolina; Europe; Asia. 
Rer. Eaton, 15, 68. 
Stereodon (Brid.) Mitt. 
1. Alar cells more or less enlarged, often inflated, hyaline 
OF COlOKEd: taki gs aes Hag trie Ries we Renard diaaie hae Ae dae ees 2 
Alar cells quadrate, not enlarged................00000000: 6 
2. Capsule plicate when dry; leaves serrulate above.......... 3 
Capsule not plicate when dry............ cece eee eeee 4 
3. Alar cells scarcely inflated, yellow, thick-walled..S. curvifolius 
Alar cells inflated, hyaline, thin-walled.......... S. Lindbergii 
4. Capsule suberect; leaves serrulate all around, alar cells 
orange; paraphyllia numerous ................. S. imponens 
Capsule cernuous; leaves serrulate only above, alar cells 
green, hyaline, or yellow-brown; paraphyllia few........ 5 
5. Mosses growing on bark or logs in the woods....... S. fertilis 
Mosses growing on the ground in swamps......... S. pratensis 
6. Quadrate cells numerous; midrib absent or very short.... 
S. cupressiformis 
Quadrate cells few; midrib usually reaching to middle of 
MEARE eect pana Omnis Me ainarOR eaters moma ase Ate nas 7 
