NEW ZEALAND, TASMANTA, ETC. 99 
improbable that the original specimens were intermixed. As to the 
remark in © Fl. New Zealand’ that P. giganteum and P. longisetum may 
be forms of P. Magellanicum, with equal justice might all the tetragonal 
capsuled Polytricha be referred to P. commune. 
5. PornyTRICHUM, L. 
P. juniperinum, Hedw. 
Hab. Tasmania, Elliott Rivulet, Mr. Archer; and elsewhere, Mossman. 
P. commune, L. 
Hab. Tasmania, Cheshunt, Mr. Archer. 
XVIII. SeHAGNACEZX. 
1. Spoaenum, Dill. 
S. eymbifolium, Dill. 
Hab. Tasmania, Mr. Archer. 
S. Novo-ZeLanpicum (Mitten). S. cymbifolio simile, caule strato 
unico cellularum inanarium corticato foliis obovatis lingulatis apice 
obtusis denticulatis marginatis basi brevi-calcaratis spatiis basi paucis 
inanibus ceteris repletis, ramis cellulis corticalibus inanibus foliis 
ovatis acuminatis apice truncatis denticulatis e serie triplici cellularum 
marginatis spatiis latiusculis fibrillis repletis poris singulis binis tri- 
nisve involucrantibus latissime ovalibus obtusis apice denticulatis 
structura rameis conformibus, theca S. cymbifolüi. 
Hab. New Zealand, Kerr and Knight. 
Nearly allied to S. cymbifolium, and with some resemblance to S. con- 
tortum, but its branches not so curved, its leaves of a different form, 
all margined, spaces wider, and pores few in number. 
S. coNFERTUM (Mitten). Habitu S. compacti, ramulis dense confertis 
breviusculis, caule cortice e serie cellularum triplici formato serie ex- 
terno fibris repleto, foliis oblongis apice rotundatis suberosulis spatiis 
intercellularibus superioribus fibris repletis inferioribus inanibus mar- 
gine nullo, ramulis cortice cellulis inanibus folis ovatis concavis 
Obtusis apice truncatis denticulatis margine serie unico cellularum 
angustissimarum superne minutissime serrulato spatiis latiusculis fibris 
spiris approximatis repletis, poris singulis. 
Hab. Tasmania; Western Mountains, rivulet behind Cumming's Head, 
Mr. Archer. 
Appearance and habit similar to S. subsecundum, but the cortical cells 
disposed in a triple series. 
S. MoLLICULUM (Mitten). S. plumoso simile, caule cortice ex strato 
unico cellularum efformato, foliis sub-elliptico-ovalibus basi brevissime 
calearatis apice rotundatis subtruncatis minute denticulatis spatiis 
intercellularibus. utplurimum repletis margine e serie triplici cellula- 
rum angustissimarum composito, ramulis flaccidis cortice cellulis 
inanibus folis ovatis acuminatis marginibus superne ineurvis apice 
