100 CONNECTICUT GEOL. AND NAT. HIST. suRVEY. [Bull. 
Dicranum Hedw. 
1. Capsule cernuous, arcuate ......... 0... cece eee eee e eens 2 
Capsule erect, symmetrical ............ 00. c cece eee e eee 5 
2. Leaves not undulate, midrib percurrent.......... D. scoparium 
Leaves transversely undulate, midrib not reaching apex.... 3 
3. Upper leaf cells elongated; capsules clustered...D. undulatum 
Upper leaf cells isodiametric; capsules borne singly....... 4 
4. Upper part of leaves strongly papillose at back....D. spurium 
Leaves smooth. at. back’ é2scsis sues ese sc eeeecsaws D. Bergeri 
5. Lamina of leaves more or less bistratose in upper part.... 
D. fulvum 
Lamina unistratose throughout ...............-0-e eee eeee 6 
6. Midrib without median guides and excurrent; leaves sud- 
denly narrowed into a long setaceous point..D. longifolium 
Midrib with median guides and vanishing below apex of 
leaf; leaves lanceolate-subulate ...........-..-.0000005 7 
7. Cells in upper part of leaves rectangular, papillose at back; 
plants not producing flagelliform branchlets..D. montanum 
Cells in upper part of leaf less regular, smooth at back; 
plants frequently characterized by numerous flagelliform 
branchlets) s20cs-scccsete veneers gametes sages sais D. flagellare 
Dicranum spurium Hedw. 
Shaded sandy soil and rocks, never on limestone. June. 
LitcHFIELD: Salisbury, Nichols. New Haven: New Haven 
(1881), J. A. Allen. New Lonpon: Ledyard, Setchell.* 
Newfoundland to Wisconsin, south to Florida; Europe; 
Asia. 
Exsic. Holzinger, Musci Acro. Bor.-Amer. No. 228°. 
Dicranum undulatum Ehrh. 
Moist soil and earth-covered rocks in hilly woods. Sum- 
mer. LitcHrietp: New Milford, Nichols; Salisbury, Miss 
Lorenz. Hartrorp: West Hartford, Miss Lorenz. NEw 
Haven: East Haven (1855), Eaton; Meriden, Nichols; 
Woodbridge, J. A. Allen. MuippLesex: Killingworth, Nichols. 
Canada and the northern United States; Europe; Asia. 
Rer. Eaton, 15, 61. 
* Reported by Barron from “near the Sound ”’ (Eaton, 15, 61). 
