202 BULLETIN OF THE UNIVERSITY OP WISCONSIN. 



ULOTA,! p. i6o. 



I. Leaves rigid, not crispate when dry. 

 III. BrummoTitlii may be songht here.] 



Costa pereurrent U. Hutchinsise,' 163. 



Costa ceasing below apex U. Barclay!, 164. 



II. Leaves crispate when dry. 



Capsule not constricted below the mouth when dry. 



Costate only at the mouth U. Lndwigii, 161. 



Costate for its whole length. 

 Stems creeping, leaves slightly crispate, cilia U. Drmnmondii, 161. 

 Stems not creeping, leaves strongly crispate, cilia present. 

 Capsule short oval, neck short. 

 Upper leaves tipped with gemmae . . U. phyllantha, 163. 

 Upper leaves not tipped with gemms . . U. Brnchii,' 162, 

 Capsule cylindric, neck long . . . TJ. maritima,* Sll. 



Capsule constricted below the mouth when dry. 

 Cells uniform throughout the leaf . . TJ. megalospora,^ ^10. 



Cells different at the angles. 

 Teeth lacunose at the apex .... U. cuirifolia,' 161. 

 Teeth not lacunose. 

 Neck very long, teeth confluent ... U. crispa,' 162, 



Neck shorter, teeth separated at apex . . . V. crispnla, 163. 



1 It seems best, while retaining for convenience the generic name Ulota (withont ex- 

 pressing any opinion as to its validity), to utilize Mrs. Britten's careful stady of our 

 American species. The nomenclature used is also derived in part from her paper in 

 BnU. Torr. Bot. Club 21: 65-76. 1894. 



^ See Appendix, no. 212. 



^ From the description given (Mac. Cat, 82) I am unable to separate U. obiusiuscula 

 C. M. & Eindb. 



* Benauld and Cardot think that U. maritima and U. phyUanfha resemble each other 

 so closely that 77. maritzTna should not stand as a distinct species. 



'Including U. subuiata and U. subuli/olia C. M. & Eindb., Mac. Cat. 82, aec Eliz. G" 

 Britton. 



'Including U. Americana Mitt., Man. 162, and probably U, scabHda Eindb., Mac. 

 Cat. 83. (E. G. B.) 



' Including U. campiopoda and U. connectens Eindb., Mac. Cat. 85. (E. G. B.) 



