96 MR. W. MITTEN ON THE MOSSES OF 
M. crispulus. (Hookeria, Hook. fil. et Wils.) 
Hab. Tasmania, rivulet behind the Sawpit, Smith's Creek, Mr. Archer. 
9. PrERYGOPHYLLUM, Brid. 
P. nigellum, Hook. fil. et Wils. 
Hab. Tasmania, rocks in rivulets and creeks, Mr. Archer. 
P. овзсовом (Mitten). Саше bi- tri-pellicari latitudine cum foliis 
fere trilineari parce ramoso, foliis disticho-compressis lateralibus pa- 
tentibus late elliptico-spathulatis angulo apicali obtuso basi angus- 
tatis intermediis patentibus dimidio brevioribus subtrapezoideis ob- 
tusis duobus cauli parallelis mediis dorsalibus et ventralibus erectis ap- 
pressis late obovatis apice rotundatis omnibus foliorum nervo ad me- 
dium brevi-furcato evanido marginibus superioribus crenulato-serratis 
cellulis partis superioris circiter 53, unciz diametro metientibus. 
Hab. Tasmania, Cheshunt, Mr. Archer. 
Whole plant obscure blackish green. Allied to P. denticulatum and 
P. nigellum, but with its lateral leaves very much narrowed towards the 
base, and these, as well as the intermedial and medial, of a different 
form. The species of this genus, from neglect in the descriptions of 
the very different forms of their leaves in the several series, are hardly 
intelligible. 
XV. HyPOPTERYGIACEX. 
1. CxATrHOPHORUM, Brid. 
C. bulbosum. (Ancectangium, Hedw.) 
Hab. Tasmania, Cheshunt, Mr. Archer. 
2. HyroPrERYGIUM, Brid. 
Н. Novee-Zelandiz, C. Müller, Bot. Zeit. 1851, p. 562. (H. Smithi- 
anum, Hook. fil. et Wils. in Fl. New Zealand.) 
Hab. Tasmania, on living trees, Western Creek, and by rivulets, 
Mr. Archer. 
Н. Struthiopteris, Brid. (Lopidium pallens, Hook. fil. et Wils. in Fl. 
New Zealand.) 
Hab. 'Tasmania, in creeks, Mr. Archer. 
XVI. BUXBAUMIACEE. 
1. Вохвлсмтл, Hall. 
B. Tasmanica (Mitten). В. indusiate simillima, foliis parvis ciliatis, 
pedunculo nitido subscabro, theca suberecta ovata superficie supe- 
riore planiuscula immarginata inferiore convexa, operculo conico. 
Hab. Tasmania, Cheshunt, Mr. Archer. 
