164 BULLETIN OF THE UNIVERSITY OP WISCONSIN. 



Leaves sub-tubulose at apex, lamellae undulate or 



numerous Oligotrichura, 258. 222. 



Calyptra cucullate, capsule unsymmetric, arcuate in- 

 curved Psilopilum, 259. 



Calyptra mitrate, densely hairy. 

 Capsule not angular, teeth 32 . . . . Pogronatiim, 260. 222. 

 Capsule 4—6 angled, teeth 64 . . . . Polytrichnm, 263. 223. 



* * Peristome double. 



■i- Capsule symmetric, erect {som,etimes inclined in age). 



Teeth almost 0, imperfect or rudimentary , Macromitrium, 178. 206. 

 Teeth perfect, linear or filiform. 

 Capsule smooth. 



Teeth revolute Schlotheimia, 179. 



Teeth not revolute. 



Leaves ecostate Fontinalis, 268. 224. 



Leaves costate. 

 Leaf-cells oval hexagonal, capsule long 



exserted Leptotheca, 251. 



Leaf-cells hexagonal-rhombic, capsule immersed Bracbelyma.^ 

 Leaf-cells linear-attenuate, capsule immersed 



or emergent Diclielyma, 272. 225. 



Capsule ribbed and twisted. 

 Costa with loose cells in center of section . Encalypta, 180. 206. 

 Costa with central stereide band . . . Merceya,^ ^4£. 

 Teeth broadly or narrowly triangular-lanceolate, pale, 

 capsule ribbed, not twisted. 

 Leaf-cells at base linear, chlorophyllose . . . Ulota, 160. 202. 

 Leaf-cells at base hexagono-rectangular, hyaline. 

 Lid straight, conical or acuminate . Orthotrichum, 164. 203. 

 Lid obliquely rostrate Zjgodon, 206. 201. 



■)— -t- Capside unsymmetric, inclined or oblique or pendidous. 



++ Inner peristome a plaited cone, (-m- -m- on p. 165.) 



Pedicel thick, red, densely verrucose . . Bnxbanmia, 267. 223. 



Pedicel very short, almost none .... Diphysciuin, 266. 



1 Including one species, B. subulatum Sell. {Diehelyma subulatuin Myrin; Cryphcea 

 inundata Nees. L. and J. Manual, pp. 274 and 413.) 

 =" See footnotelp. 159. 



