90 MIt. W. MITTEN ON THE MOSSES OF 



XIII. Leskeace^. 

 1. Hedwiqia, JEhrJi. 



H. ciliata, Ehrh. (Pilotrichum, Cryphaea, Dichotomaria, microcyatheum, 



C. Muller, Bot. Zeit. 1851, p. 564.) 

 Hob. Tasmania, on rocks, O'Farrell's Hill, Mr. Archer. Near Laun- 



ceston, Mossman, No. 830. 



There appears to be no appreciable difference between these and 

 European specimens. 



H. imberbis. Spruce. 



Hab. Tasmania, Cheshunt, on rocks, Mr. Archer. 



H. Humboldti, Hook. 



Hab. Tasmania, Cheshunt, Mr. Archer. 



2. Ceyph^a, Brid. 



C. Tasmanica (Mitten). Monoica, ramis elongatis inferne saepe denu- 

 datis superne ramulis brevibus ut plurimum fertihbus dense approxi- 

 matis, foliis patentibus orbiculari-ovatis acutis nervo sub summo apice 

 evanido margine e medio ad apicem minutissime sed dense serrulato 

 nullibi recurvo cellulis minutis ovoideis ad basin angustis elongatis, 

 perichsetialibus e basi ovali subulatis thecam ovatam longe superanti- 

 bus, operculo convexo acuto, peristomio interno processibus angustis 

 dentium longitudine in membrana brevissima annulo duplici. 



Hab. Tasmania, on rocks, Jackey*s Plain Creek, Mr. Archer. 



More robust than C. dilatata or C. Mulleri, the margins of its leaves 



not recurved below, and the perichsetial leaves more subulate, but of the 



same habit and colour. 



C. CRENULATA {Mitten). Monoica, ramis pinnatis, foliis late-ovalibus 

 acutis obtusisve concavis nervo paulo ultra medium evanido margine 

 apice crenulato inferne recurvo cellulis minutis ovoideis basi elongatis, 

 perichsetialibus convolutis thecam paululo superantibus acuminatis 

 apicibus erosis, theca ovali, operculo conico acuminate. 

 Hab. Victoria, Tarwin, Br. F. Mueller, No. 107. 



Habit of the branches more nearly that of C. patens, but closely allied 

 to C. dilatata, and, like it, probably a riparial species ; from this, how- 

 ever, it differs in the shorter nerve of the leaves, more robust habit, and 

 more shortly acuminated perichsetial leaves. 



3. Teachypus, Schw, 



T. HoRNSCHUCHii {Mitten). Caule repente, ramis longissimis pendulis 

 flexuosis subpinnatim ramosis, foliis e basi cordata caulem amplexante 

 marginibus minute crenulatis ovatis brevi-apiculatis integerrimis nervo 

 apicem versus evanescente carinatis bistriatis e cellulis minutissimis 

 subopacis margine pellucidioribus rotundatis areolatis, perichajtialibus 

 ovato-lanceolatis, theca in pcdunculo brevi basi paraphysibus louge 



