304 BRYOLOGY OF NEW ZEALAND. 
The original plant from New Zealand was referred to var. 
nitdubn (Wahl.), Resecsreaaies by some authors a distinct species; 
ligh 
4 ulchellum appears to be rare; I have not § seen it from the 
North I 
3. Isopterygium molliculum (Sull.) Mitt. in Seem. FI. Vit., p. ae 
Syn. vere molliculum Sull. in Proce. Amer. Acad., 
178 (Jan. 1854); Handb. N.Z. FL, p. 475. 
A quite different plant from the two yes though the 
differences are not easy to define. It has no resemblance to J. 
limatum, and could only in its sik forms be confused with the var. 
nitidulum of I. pulchellum; but it is a considerably larger plant, 
ually pale whitish-green, with more distant leaves, which are almost 
always complanate (sometimes slightly deecurved), and usually much 
more divergent from the stem. The perichaetial leaves, while usually 
erect, are Te less strict, and the subula is often flexuose or 
spreading. The sule is very much wider, usually not greatly 
longer than wi Age se is inelined to horizontal, and may even be 
subpendulous (in wie case it is very similar to “Betzopothecium). 
The aR points may be faintly denticulate, but are mostly entir 
There are frequently a few distinetly enlarged and hyaline os 
cells, a this too appears to be ineonstant. 
he Handbook N.Z. Fl. expresses some doubt as to the 2 nomed 
of the New Zealand plant with the Sandwich Is. species; but from 
study of a considerable range of the Pacifie moss I am inclined to 
think it a very variable species, sala may well include the New 
Zealand forms. J. candidum (C.M.) and I. arg, lau Besch. are 
I think almost certainly the same thin 
The authors of the Handboo k say “operculum i in our specimens 
slender, as long as the capsule.’’ This apears to me an error of 
observ ation In ne’s and Macegillivray’s plants in Hooker’s 
herbar ‘there are very few operculate capsules; I have only 
detaniad © two; in both of these the lid is shortly beaked only, the lid 
being about half the length of the ea psule. Thus the only suggested 
difference from Sullivant’s original specimen, so far as I am aware, 
disappears. 
It is a rare species in New Zealand, but I have it from an 
unloealized spot (doubtless in the North L ), leg. Hutton & rae 
and also from Rotorua and Taupo, collected by Berggren. Thes 
with the original Kermadees locality are the ik New Pegi 
stations I know of. 
Sub-family STEREODONTEAE. 
Stems usually more or less pinnate. Leaves usually not inserted 
sie on the stem, more or less distinctly faleate-decurved; alar 
