BARNES — NORTH AMERICAN MOSSES. 221 



CINCLIDIUM, p. 249. 



L/eaf margin of 4-5 rows of cells, laminal cells irregularly 



disposed C. stygium, 250. 



Leaf margin of 2 rows of red cells, laminal cells in rows 



oblique to costa C. subrotundum, 250. 



AULACOMNIUM, p. 252. 



Leaves coarsely serrate to middle, autoicous . A. heterostichum, 253. 

 Leaves serrulate near apex, acute or acuminate, dioicous. 



Stem leaves long acuminate, very roughly papillose A. papillosum, 253. 

 Stem leaves acute. 

 Stems commonly prolonged and gemmiferous, male 



flowers terminal, gemmiform . . A. androg^ynum, 252. 

 Stems commonly not gemmiferous, male flowers dis- 

 coid A. palustre,^ 252. 



Leaves entire, obtuse A. turgidum, 253. 



[The leaves of A. palustre are entire when young, but soon become erose crenulate.) 



TIMMIA, p. 254. 



Leaves larger above, sheath papillose on the back. 



Not hyaline at the insertion, monoicous . T. Megapolitana, 254. 



Hyaline at the insertion, dioicous ... T. Norvegica, S5S. 



Leaves uniform, sheath smooth on the back. 



Base hyaline, costa not toothed on back T. Megapolitana Bavarica, 5.57. 



Base orange, costa toothed above on the back . T. Aiistrlaca,^ 254. 



ATRICHUM, p. 255. 



Leaves margined, costa lamellose on upper side only. 

 Lamellae 2-6, entire, lamina with teeth on surface.* 

 Lamellse 4-6 cells high. 

 Leaves serrate for % length . . . A. undulatuin,* 256. 

 Leaves serrate above middle only. 

 Teeth double, aculeate . . . .A. augustatiiin, 2.56. 

 Teeth single, short .... A. xaulhopelma, 257. 



1 See Appendix, nos. 355, 356. 



^ See Appendix, no. 359. 



' Excluding A . xanthopelma f 



* See Appendix, no. 360. 

 5 



