34 BRYOLOGY OF NEW ZEALAND. 
Subgen. EurrEMATopon C. M. 
A. Peristome teeth almost entire. Neck 14 to twice length of capsule, 
indistinctly strumose. 
3. Trematodon Cheesemanii C. M. 
B. Peristome teeth split below, united above. Neck 1-1} times length 
of capsule, more or less distinctly strumose. 
4. Trematodon suberectus Mitt. 
1. Trematodon Mackayi (R. Br. ter.) Broth. in Engler and Prantl, 
*“ Pflanzenfamilien,” p. 292. 
Syn. Stirtonia Mackayi R. Br. ter. in Trans. N.Z. Inst., vol. 32, 
p. 148, tab. xvi 
_ This very remarkable species was described and figured by R. Brown in 
the paper cited above. The author very naturally created for it a new 
of sufficient value to warrant generic separation, and the plant has been 
included by Brotherus and Roth in the subgenus Gymnotrematodon. 1 
have followed this arrangement, thou by no means certain that it is the 
correct one, in view of the fact that the calyptra is certainly mitriform, 
base, as it would practically be, of the mitriform cal e capsule 
1s very pachydermatous, and the neck, too, of firmer consistency than in 
gradually, but at the same time equal all round and not forming a struma. 
The deoperculate capsule shows remains of an annulus. 
is rare species has not, so far as I am aware, been refound since 
Thi 
collected by R. Brown on the west side of Stewart Island in 1889 and 1892. 
15; Roth, Aussereuropaischen Laubm., 1, tab. xXV. 
This plant, which I have not seen, is described and figured by Roth — 
(from a specimen leg. W. Bell, ex herb. Brotherus) as a quite distinct species, 
2. Trematodon flexipes Mitt. in FI. Tasman., 2, 173, tub. 172: Hand- 
k, p. 
* It is perhaps as well to mention that in comparing the relative length of neck 
and capsule I have given the measurements of the external capsule (not the internal 
spore-case) from its base to the orifice—not including the lid. 
