DICRANACEAE. 35 
there, though, as it vatere in Tasmania, its presence is to be expected in 
the Northern IsJand a 
specimen in “% eo n’s herbarium, labelled “Tr. flexipes Mitt. -- 
Kaikoura, Dec., 1889, faba: T. W. N. Beckett,” is not Mitten’s species. 
It is probably the original of 7. integrifolius C. M., but in any case is in- 
separable from 7’. suberectus Mitt. The few capsules that are mature show 
the neck to be distinctly strumose at base, —— the greater number being 
unripe, it appears to taper gradually into the seta 
3; oer Cheesemanii C. M. in Hedw., 1898, p. 110; Roth, op. cit., 
heicitheaes 
Hab. = Rik Island, Kermadecs, 1888 ; leg. T. F. Cheeseman. 
A distinct species, judging by the description and figures, in the leaf 
subula broader and shorter than in most of the species, with the lamina 
cells more distinct to apex; and especially in the peristome teeth, which 
are undivided, at the most having the median line here and there somewhat 
pellucid by thinning, scarcely perforated. 
4, bye na suberectus Mitt. MS. ex ae f. & Wils. in Handb. 
.Z. Flora, p. 415; Roth, op. cit., tab. x 
Syn. Pijeiaton ues MH. t.& W., ig N.Z., 2, 62 (non T. 
longicollis Michx.). . arcuatus Mitt. ap on 
Handb, p- 415; Roth, op. cit., tab. xxv. T. integrifolius C. M. 
in Hedw., 1898, p. 110 
After much hesitation I have percite T. suberectus and T. arcuatus, being 
unable to recognize any clear grounds of distinction. In the Handbook, 
LT’. suberectus is described first, and the only description of 7’. arcuatus given 
is, ““ Very similar to 7. suberectus, but the capsule is as long as its neck, and 
deflexed ” (7. suberectus is described as having the capsule “ nearly erect, 
much shorter than the somewhat curved neck”). The description leaves 
it uncertain whether the deflexing of the capsule in areuatus is attributed 
to a bent seta or to a greater curving of the neck; Brotherus separates 7. 
arcuatus and T’, flexipes Mitt. from all the remaining species of Eutrematodon 
in having the seta strongly flexuose to cygneous, attributing a cygneous 
seta to 7. arcuatus and “ Seta sehr geschlangelt y 2 
no reference to the cygneous seta in his description ; whereas he suggests 
no distinction whatever between the form of seta in the three New Zealand 
species described in the Handbook (unless this is implied by the term 
“ deflexed ”’ above referred to), while, on the other hand, the generic descrip- 
tion there given has ‘“ Fruitstalk terminal, flexuose or coiled”; and this 
appears to me the correct etal since the seta in Trematodon is normally 
very delicate and flexuose, varying considerably in this respect in a single 
tuft. I have seen no New Zealand specimens of any kind in which the 
seta could properly be considered as normally cygneous. 
oth, in describing the two plants, distinguishes them as follows :— 
rematodon us: Neck indistinctly strumose, 14 times as long as 
capsule, erect and scarcely twisted ; spores 20-25. T. arcuatus: Neck 
distinctly strumose ; leaves denticulate at shitjalder of basal part, neck 
curved and strongly twisted, equal to or slightly longer than capsule ; spores 
22-27 pw 
