U 1 i v 



BARNES NORTH AMERICAN MOSSES. 



179 



ANCECTANGIUM, p. 54. 



Leaves long-lanceolate, subulate pointed ... A. Peckii, 55. 

 Leaves lanceolate, acute A. compactum, 45. 



WEISIA, p. 55. 



Inflorescence autoicous. 



Leaf margins involute, costa stout, excurrent . W. viridula, 55. l 



Leaf margins not involute, costa thin, vanishing in the 



acumen W. conroluta, 48. 



Inflorescence dioicous. 



Teeth large, lacunose and bifid, capsule 8-sulcate W. lOHgiseta, 8 56. 



Teeth truncate, capsule not sulcate . . . . W. Wolfli, 57. 



DICRANOWEISIA, 8 p. 57. 



Leaf cells at base thick-walled, linear (1 : 6-10) . . D. crispula, 57 

 Leaf cells at base thin- walled, rectangular (1:2-3) . . D. cirrhata, 57. 



RHABDOWEISIA, p. 58. 



Leaves minutely denticulate or entire; teeth filiform, 



smooth, fugacious B. fugax, 59. 



Leaves coarsely dentate; teeth linear, obliquely crossed- 



striate . B. denticulata, 59. 



CYNODONTIUM, p. 59. 



Annulus very narrow and persistent or none. 

 Teeth bifid or trifid, pale . . . 

 Teeth bifid, red to purple. 

 Collum indistinct or none .... 

 Collum short, inflated and strumose 



Teeth not bifid, purple 



Annulus distinct. 



Leaves long taper-pointed, apex serrate 

 Leaves more obtuse, apex crenulate 



C. sufoalpestre, 51. 



C. gracilescens, 60. 



C. Tirens, 61. 



C. Schisti, 59. 



C. polycarpuin, 60. 

 C. strunmlosum, 58. 



1 See also Appendix, nos. 49, 50. 



"From the examination of specimens of this species from Florida and Louisiana, 

 Renauld & Cardot conclude that it is only a variety of the most variable and polymor- 

 phous W. viridula. 



8 Z>. obliqua Eindb. Mac. Cat. 256 is women nudum. 



