BARNES NOETH AMERICAN MOSSES. 221 



CINCLIDIUM, p. 249. 



Leaf 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. papillosnm, 253. 

 Stem leaves acute. 

 Stems commonly prolonged and gemmiferous, male 



flowers terminal, gemmiform . A. aiidrogynum, 252. 



Stems commonly not gemmiferous, male flowers dis- 

 coid . ... A. pal list re, 1 252. 



Leaves entire, obtuse . . . . . . A. tunridiim. 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. Megapel it an a. 254. 



Hyaline at the insertion, dioicous . . . T. Norvegica, 358. 

 Leaves uniform, sheath smooth on the back. 



Base hyaline, costa not toothed on back T. Megapolitana Bavarica. 357. 



Base orange, costa toothed above on the back . T. Austriaca, 8 254. 



ATRICHUM, p. 255. 



Leaves margined, costa lamellose on upper side only. 

 Lamellae 2-6, entire, lamina with teeth on surface. 3 

 Lamellae 4-6 cells high. 



Leaves serrate for % length . . . A. undulatnm, 4 256. 

 Leaves serrate above middle only. 



Teeth double, aculeate . . . ' . A. angustatnin, 256. 

 Teeth single, short . . . ' . A. xaiithopelma, 257. 



1 See Appendix, nos. 355, 356. 



2 See Appendix, no. 359. 

 'Excluding A. xanthopelma ? 

 4 See Appendix, no. 360. 



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