180 BRYOLOGY OF NEW ZEALAND. 
Venturi, it is true, gives as an additional character the capsule smooth, 
without any trace of ribs; and this is markedly the case with Bell’s 
specimen from Mount Alfred, which I take to be the original gathering. 
But in Mr. Petrie’s specimen from Vincent County, while the peristome 
is distinctly that of O. praeperistomatum, the capsules are markedly ribbed, 
and both of the species of this group must be considered to share the 
I have only seen this species from three localities, all in the South 
Island: one from Mount Alfred, on rocks with Andreaea, leg. W. Be 
grass Hill, Vincent County, Otago.’ Further study in the field may 
decide whether, as is certainly suggested by the first habitat (with Andreaea), 
this species may be a native of siliceous, non-calcareous rocks, as con- 
trasted with O. rupestriforme, which is frequently at least a calcareous 
pecies. 
EXCLUDED SPECIES. 
These will all be found under the synonymy of Ulota lutea. 
Uxora Mohr, MS., Brid. 
A genus very close to Orthotrichum, but usually of a different habit, 
having the leaves very crisped when dry, the capsule fully exserted on a 
long seta, the calyptra usually very hairy, and the stomata confined to the 
region of the base of the capsule. The leaves have a more distinctly 
widened base, and the areolation is somewhat distinct. 
Ulota lutea Mitt. in Journ. Linn. Soc., Bot., iv, 77 (1859). 
Syn. Orthotrichum luteum H. f., Handb. N.Z. Fl., p. 433. 0. gracilli- 
mum R. Br. ter. in Trans. | 
ter., op. cit., p. 432. O. parvulum R. Br. ter., op. cit., p. 439. 
O. erectum R. Br. ter., op. cit., p- 441. O. ottraénse R. Br. ter., 
902). 
U. lutea is easily known from the various species of Orthotrichum by the 
yellowish tufts with leaves strongly curled when dry, the densely hai 
calyptra, and the longly exserted, narrow, ribbed capsules. The only 
species that it is at all likely may be confused with it is O. tasmanicum, 
which may in some of its forms be quite difficult to separate: the leaves 
in the Ulota are narrower and more crisped when dry, the calyptra somewhat 
I have examined all Brown’s species of Orthotrichum in the above 
synonymy except O. erectum and O. otiraénse. the latter certainly, and 
the former in all probability, from the descriptions and figures, belong here 
h O. erectum might possibly belong to 0. tasmanicum). 
U. lutea is widely distributed throughout the Islands, both North and 
South, and extends to Tasmania. 
s Macromirrium Brid., Mant. M., p- 132 (1819). 
A large genus of mosses, including more than four hundred species, 
idely distributed in ti ions of the world, and like all such genera, 
i ei) YY 
ing a good deal of plasticity ‘in the species, and thereby much difficulty 
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