22 



B. Peristomal teeth 16 composed of a double series of cells, eroded at 

 the sides and papillose. 



483. Lyellii H. & T., Br. Am., Pac. Coast. 



484. leiocarpum B. & S. (O. speciosum Nees. var. polyanthum Lx. { 



.fide Aust.), y(. E. Sts., Br. Am. ( 



Family VI. ENCALYPTE^. 



70. Encalypta Schrad. 



485. commutata N. <{■ H., Br. Am., Eky. Mts. 



486. viilgaris Bedw., Br. Am., Eky. Mts., Pac. Coast. 



" var. obtusa, Col. 



487. rhabdocarpa Hclnvj., Br. Am., Rky. Mts., N. Mex. 



488. ciliata Eedw., N. H., N. Y., O., Br. Am., Eky. Mts., Pac. Coast. 



489. apophysata N. * J/., Eky. Mts. 



490. procera Bruch, Br. Am. 



491. streptocarpaiJedu'., Mid. Sts., Br. Am., Cal. 



492. Mexicana C. M., Mex. 



493. *longipes Mitt., EJcy. Mts. 



494. Macounii Aust., Can. 



495. Selwyini Aust.. Vanc'r I. 



Tribe IX. TETEAPHIDACE^. 

 Family I. TETIiAPHIDE^E. 



71. Tetkaphis Hedio. 



49(5. pellucida Ifedw.. U. S., Br. Am. 



72. Tbtkodontium ScAwr/. 



497. repandum Ftmh, Wht. Mts., X. H. 



Tribe X. SCHISTOSTEGACE^. 

 Family I. SCHISTOSTEGE.<E. 



73. SCHISTOSTEGA Mohr. 



498. osmundaceae IF'. <£- if.. N. Y., Wht. Mts., Br. Am. 



Tribe XI. SPLACHXACE.^;. 

 Family I. TAYLOEIE^. 



74. DissODON G. & A. 



499. Froelichianvis Fratl.. Rky. Mts. 



500. Hornschuchii Grer.. Eky. Mts. 

 .501. splachnoides Thun.. Col., Br. Am. 



