BARTRAMIACEAE, 
229 
2. Conostomum pusillum H. f. & W., Fl. N.Z.,; ii, 88 (1855) ; Handb. 
N.Z. Fl., p. 445. 
C. paryulum Hampe in Linn., xxviii, 207 (1856). Philonotis 
peel ane in Journ. Linn. Soc., Bot. iv, faa 859). 
Conostomum 
macrocarpum R. Br. ter. in Tra is, vol. ~ p- 
(1900). C. “atermetivm R. Br. ba 
. loc. cit. 
ter., op. cit., p. 332. C. Bel R Br. ter, op. et loc. ¢ 
C. minutum R. Br. ter., op. et loc 
aM ages 
The leaves in this species are smaller, narrower, with a better-defined 
sometimes narrowly lanceolate-subulate, gradually and finely acuminate 
ith the nerve excurrent in a long flexuose peut The margin may be 
entire except for a few smal! teeth at apex, may be denticulate for 
some way down. ‘The cells are rectangular me athe pellucid, the upper 
very variable, sometimes elongate and linear, sometimes shorter and rather 
irregular, rhomboid- hexagonal. The specimens of C. macrocurpum which 
I received from Brown’s herbarium, as well as that in the 
Christchurch 
to treat it as a variety, if not as specifically distinct. Curiously, — 
Brown described and figures a quite different form of lea 
n some 
specimens of C. pusillim the leaves approach the form reac above so 
nearly that it can lige hardly be treated as anything but an extreme 
form of this spec 
C. (?) ara a was described from specimens not showing peristome, 
and therefore 9 little doubtful as to position: the inforescence, however, 
and the leaf form and arrangement leave little doubt of 
Conostomum, and, I should think, nearly certainly C. pusillum. 
It is probably a not uncommon species in alpine situations. 
Patronotis Brid., Bryol. univers., H, p. 15. 
its being a 
Although the characters of the genus are not very easily defined, it is 
generally easily recognized from Bartramia by the habit; the plants are 
all. 
mostly paludal, and the stems generally but not always 
A considerable number of the species described under Bartramia by 
R. Brown in the paper already cited belong to Philonotis: that they cannot 
recognize the highly polymorphous nature of P. tenuis, to which five of beg 
species must be reduced. 
Key TO THE SPECIES. 
Slender Bango with straggling stems and closely whorled branches ; 
i leaves ntinute, glaucous green . ‘ is 
Stems aks longer, parallel ; leaves larger te 
Slender; nerve usually longly excurrent, leaves very inely acumi- 
, Margin narrowly recurved a 
a Behind : ; leaves falcate, rather — pointed, nerve: shortly 
excurrent, margin plane oy 
ae tia: 
2. tenuis. + 
3: australis, 
