68 MR. W. MITTEN ON THE MOSSES OF 
4. TREMATODON, Rich. 
T. FLEXIPES (Mitten). Dioicus? csspitosus, caule erecto breviusculo, 
foliis erecto-patentibus lanceolato-subulatis integerrimis nervo lato 
totam fere foli partem superiorem occupante, perichetialibus latis 
vaginantibus, theca in pedunculo brevi gracili flexuoso stramineo sub- 
erecta rufo-fusca collo pallidiori squilongo, operculo curvirostrato, 
peristomio e dentibus rubris dieranoideis annulo composito. 
Hab. On the ground, plain behind Cumming's Head, Western Moun- 
tains, Tasmania, Mr. Archer. 
Very nearly resembling T. brevicollis, but with leaves in which the 
nerve occupies the whole of the upper three-fourths, the seta flexuose, 
and the peristome with distinctly cleft teeth. 
5. Buinpia, Br. $ Sch. 
B. acuta, B. & S., var. curviseta. 
Hab. Tasmania, on stones, rivulet behind Cumming’ s Head, Western 
Mountains, Mr. Archer. 
6. DicBANUM, Hedw. 
+ Eudicranum. 
D. robustum, Hook. fil. et Wils. 
Hab. Tasmania, Cheshunt, Mr. Archer. 
D. pungens, Hook. fil. et Wils. . 
Hab. 'Tasmania, Cheshunt, Mr. Archer. 
D. Billardieri, Schw. 
Hab. Tasmania, on logs in creeks, Mr. Archer. 
D. dicarpon, Nees.—D. leucolomoides, C. Müll. in Bot. Zeit. 1851, 
p. 549. 
Hab. Tasmania, in many places, Mr. Archer ; Wellington Falls, Mount 
Wellington, Mossman, No. 744. 
Variable in appearance, but a most distinct species. 
D. Menziesii, Taylor.—D. brachypelma, C. Müll. in Bot. Zeit. 1851, 
р. 550! 
Hab. Tasmania, in creeks, Mr. Archer. 
D. ANGUSTINERVE (Mitten). Dioicum, D. Billardieri simile, caulibus - 
brevibus ramosis, foliis patentibus subsecundis e basi subovali elon- 
gata sensim angustatis, nervo angusto percurrente dorso marginibusque , 
apicem versus serrulatis, cellulis elongatis angustis alaribus oblongis 
quadratisque flavide fuscis in massam quadratam utrinque dispositis, 
perichætialibus convolutis internis vaginantibus subito in acumen 
