No. II.] THE BRYOPHYTES OF CONNECTICUT. I43 



Brachythecium Br. & Sch. 



1. Stalk smooth throughout* 2 



Stalk more or less roughened 5 



2. Dioicous 3 



Monoicous 4 



3. Capsules erect and symmetrical .B. acuminatum 



Capsules unsymmetrical, more or less inclined. .B. oxycladon 



4. Stem leaves gradually narrowed from base to slender 



apex B. acutum 



Stem leaves ovate-lanceolate B. salebrosum 



5. Stalk rough above, nearly smooth below; monoicous 6 



Stalk rough throughout with large, crowded papillae 8 



6. Midrib extending nearly to apex of leaf B. populeum 



Midrib extending to middle of leaf or a little beyond. ... 7 



7. Cilia appendiculate B. plumosum 



Cilia not appendiculate B. campestre 



8. Dioicous 9 



Monoicous 10 



9. Cells of branch leaves about 5 times as long as broad, 



unipapillate B. Novae-Angliae 



Cells of branch leaves at least 8 times as long as broad, 



smooth B. rivulare 



ID. Stem leaves lanceolate; cilia not appendiculate. .B. velutinum 



Stem leaves ovate to triangular-ovate 11 



1 1. Cilia not appendiculate B. Rutabulum 



Cilia appendiculate B. Starkei 



Brachythecium salebrosum (Hoffm.) Br. & Sch. Hyp- 

 niini salebrosum Hoffm. 



On rocks and earth, trunks and roots of trees, and decaying 

 wood, in moist shaded places, especially in pine or hemlock 

 woods. Autumn. Hartford : Farmington, Mrs. Lowe. Tol- 

 land : Stafford, Nichols. Windham : Canterbury, Mrs. 

 Hadley. Fairfield: Darien, Mrs. Lozve. New Haven: 

 Cheshire and East Haven, Nichols; Guilford, Hamden, and 

 New Haven (1856), Eaton; North Haven, Harger; Orange, 

 Nichols; Woodbridge, Evans. New London : North Stoning- 

 ton, C. B. Graves. 



Arctic America, Canada, and southward to South Caro- 

 lina and Missouri ; Europe ; Asia ; Africa. 



Ref. Eaton, 15, 66. 



