234 BULLETIN OF THE UNIaEESITT OF WISCONSIN. 



CLAOPODIUM, p. 327. 



Seta smooth C. lenconenrnm, 328. 



Seta rough. 

 Perichaetial leaves coatate . . . . C. Whippleanum, 328. 

 Perichaetial leaves ecostate. 

 Bright green, leaves open, loosely imbricate C. laxifolimn, 329.. 



Dirty or yellowish green, leaves subfalcate secund, 



closely imbricate C. crispifolinin,^ 329. 



TRIPTEROCLADIUM, p. 330. 



Leaves shortly bicostate. 



Obscurely denticulate at the apex . . T. lencocladnlnm, 330. 



Distinctly denticulate all around . T. compressnlnm, 331. 

 Leaves ecostate T. rnpestre, 444. 



CAMPTOTHECIUM, p. 331. 



/ 

 Plants regularly pinnate. 

 Stems erect, stout (to 15 cm.) . . . C. megaptilnm, 334. 



Stems prostrate. 

 Leaf base entire, alar cells abundant. 

 Capsule oblong, segments split below . . C. aureum,' 447. 

 Capsule long cylindric, segments split throughout C. Amesiee, 448^ 

 Leaf base denticulate, alar cells few . . C. Nnttallii," 332. 



Plants irregularly branched, stout, in extensive mats. 

 Seta rough. 

 Leaves ovate-lanceolate (1: 3), cilia 3, as long as the 



segments C. seneum,* 331. 



Leaves long lanceolate (1 : 5), cilia 1-2, long or short, 



operculum rostrate C. lutescens, 331. 



Seta smooth C. nitens, 333. 



Plants irregularly branched, slender, cilia 1-2, short oper- 

 culum obtusely conical ..... C. arenariun, 333. 



1 Including H. ramulosum Hpe., L. & J. Man. 328. 



' JI. pinnatiftdxim S. & L., L. & J. Man. 333, is rednced by Een. & Card, to a variety 

 of C. aureum Soh. Hedw. 33: 255. 1893. 



^ C JiamaiideTis Kindb. Mac. Cat. 189, see, Een. & Card., ibid. 256. See also Appendix,, 

 no. 449. 



4 See Appendix, no. 446. 



