164 BULLETIN OF THE UNIVERSITY OF WISCONSIN. 



Leaves sub-tubulose at apex, lamellae undulate or 



numerous Oligotrichnm, 258. 222. 



Calyptra cucuUate, capsule unsymmetric, arcuate in- 

 curved Fsilopilum, 259. 



Calyptra mitrate, densely tairy. 

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

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



* * PeristoTue double. 



■t~ Capsule symmetric, erect {som,etimes inclined in age). 



Teeth almost 0, imperfect or rudimentary . Macromitrinm, 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 Leptotlieca, 251. 



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

 Leaf -cells linear-attenuate, capsule immersed 



or emergent Dichelyma, 272. 225. 



Capsule ribbed and twisted. 

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

 Costa with central stereide band . . Merceya,* ^42. 



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 Zygodon, ^06. 201. 



-I- -1- Capsule unsymmetric, inclined or oblique or pendulous. 



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



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



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



1 Including one species, B. subulatuTn Sch. (Diehelyma subulaium Myrin ; Cryphcsa 

 i nundata Nees. L. and J. Manual, pp. 274 and 413,^ 

 ' See footnotelp. 159. 



