1904J Evans, — Notes on New England Hepaticae, — II 173 



typical leaves on prostrate shoots ; they give the gemmiparous branches 

 very much the appearance of those found in Scapania glaucocephala 

 and Odontosckisma denudatum, both of which are larger species. S. 

 Hellerianus may certainly be expected in other parts of New England. 



8. Cephalozia Jackii Limpr. ; Spruce, On Cephalozia, 67. 1882. 

 Cepha/ozieHa Jackit V^^Lxnst. Kryptogamenfl. der Mark Brandenburg, 

 I: 230. 1902. "On earth at base of a pine tree." Amesbury, 

 Massachusetts {J. IV. HuntifigUni). This interesting little species is 

 very closely related to C. divarkata but is distinguished by its par- 

 oicous inflorescence. The species of Cephalozia belonging to the 

 subgenus Cephaloziella are not clearly understood even in Europe, 

 and this is especially true of C. divarkata. Apparently Spruce him- 

 self understood this species in too broad a sense and included in it a 

 number of dioicous types which are probably specifically distinct. A 

 few of these have already been separated by Schiffner and others, 

 but the confusion regarding the group as a whole is not yet wholly 

 cleared away. Several of these newly separated species also occur 

 on this side of the Atlantic, but it seems wisest for American stu- 

 dents to continue referring them to C. divaricata until European 

 writers have reached more definite conclusions. 



9. Cephalozia serriflora Lindb. Medd. Soc. F. et Y\. Fenn. 3 : 

 188. 1878. Jungermannia reclusa Tayl. Lond. Jour. Bot. 5: 278. 

 1846 (in part ?) . C. reclusa Dumort. Hep. Eur. 92. 1874 (in part ?). 

 C. catefiulata Spruce, on Cephalozia, T,Ty. 1882 (in part). C. Vir- 

 giniana Spruce, /. c. 37 (?). Jericho, Vermont {A. W. H.) ; West- 

 ville, Connecticut {A. IV. E.). The specimens from Mount Desert, 

 Maine, collected by E. L. Rand and listed as C. virgifiiafia are some- 

 what doubtful but probably also belong here.^ In Spruce's descrip- 

 tion of C. catefiulata the perichaetial bracts are said to be denticulate 

 as a rule but in rare instances nearly or quite entire. According to 

 more recent European writers Spruce's species includes two distinct 

 specific types, the plants with entire bracts representing the true J. 

 caienulata of Hiibener and those with denticulate bracts belonging to 

 J. reclusa of Taylor. Unfortunately the identity of Taylor's species 

 cannot be satisfactorily established ; the plants labeled /. reclusa in 

 his herbarium include four or five distinct species in poor condition, 

 and his original description makes no allusion to the bracts. It is 



1 Rand & Redfield, Flora of Mount Desert Island, Maine, 221. 1894. 



