` NEW ZEALAND, TASMANIA, ETC. 89 
S. acicularis. (Hypnum, Brid.) 
Hab. Tasmania, Cheshunt, Mr. Archer. 
S. sciuroides. (Leskea, Hook. Musc. Exot.) 
Hab. Tasmania, trees in creeks, Mr. Archer. 
To this group, of which S. acicularis is the type, belong S. densifolius 
(Hypnum, Brid.), from Tristan d'Acunha and New Zealand, S. ptycho- 
carpon (Hypnum, Schw.), S. ericoides, and S. Lyallii, Mitten (Leucodon 
nitidus, Hook. fil. et Wils. in Fl. New Zealand). All these agree in habit, 
ramification, the red colour of their stems, and thin, pale, chaff-like 
leaves and plicate capsules. S. ericoides and S. sciuroides in the Fl. of 
New Zealand are joined with Neckera setosa, Hook. Musc. Exot., to form 
the genus Cladomnion ; but the last-named species is in structure alto- 
gether different, and is in fact a Spiridens. 
Achyrophyllum differs from Hylocomium, Schimp., in its ramification 
not being pinnate, and its plicate capsules. From Plagiothecium it 
differs in its leaves not being obliquely inserted and its erect stems. 
5. Sautoma, Hook. fil. et Wils. 
S. tenella, eorund. 
Hab. Tasmania, on logs near Cheshunt, and on rocks, Jackey’s Plain 
Creek, Mr. Archer. 
XII. NECKERACEZ. 
1. МЕСКЕВА, Hedw. 
* Euneckera. 
N. hymenodonta, C. Müller, Bot. Zeit. 1851, p. 564. 
Hab. Tasmania, rivulets and damp copses, on trunks and branches of 
trees, Mr. Archer. 
** Thamnium. 
N. RIVALIS (Mitten). Dioica, humilis, ramis arcuatis parce bipinnatis 
apice sæpe productis stoloniferis, foliis distichis patentibus spathulatis 
acutis nervo ultra medium evanido margine latere inferiore anguste 
incurvo superne serrulatis ramulinis ellipticis magis serrulatis, cellulis 
inferne elongatis superne ovoideis rotundatis parvis, perichetialibus 
e basi lata ovata brevissime nervata subulatis longe attenuatis, theca 
in pedunculo elongato ovali horizontali, operculo subulato rostrato, 
peristomio interno ciliis binis appendiculatis inter processus per- 
foratos dentium longitudine in membrana ad { eorum longitudinis 
exserta. 
Isothecium pumilum, Hook. fil. et Wils. Fl. Tasm. t. 175. f. 7. 
Hab. Tasmania, on stones, copse by West End Rivulet, on rocks by 
rivulets and Stackhouse Falls, Mr. Archer. 
Allied to Omalia oblongifolia, Hook. fil. et Wils., but larger, less 
densely branched, leaves acute, and peristome more developed. 
Ld 
