263 i 
C. elongatum, A. et H. S. Gepp, in Journ, Bot., xlix, 1911, p. 20. 
See note on the synonomy of this species in the paper fie A. 
** Challenger ” specimen collected 30 miles off Raoul Island exists in 
the Kew Herbarium. The plant was not found by Miss Smith, | 
Zonaria nigrescens, J. Ag. 
The plant was also collected by Oliver. See note above. 
Taonia australiaca, J. Ag. 
Another rare and little. known species. It was found in Little 
Barrier Island by Miss Smith, and in the Kermadec group both by 
Oliver and by the “ Herald” botanists. See note above. 
Haliseris Pohypedeorte't Cotton, sp. nov 
22. podioide fron ibus venosis, ab H. Plagiogramma 
sinubus Front acutis recedit. 
rons 15-18 cm. alta, basi eximie stuposa et plerumque stipite 
longo ramoso suffulta, sensim in segmenta dichotoma sinubus acutis 
abiens. Segmenta 5-8 mm. lata, linearia, venosa, apice attenuata 
margine integerrima. Venae distinctae, cire mm. istantes, a 
costa ad marginem oblique excurientes, Tetrasporangia in soros 
elongatos collecta. Oogonia ignota. 
Bitendes Islands. E. M. Smith, 1908. 
The present species resembles in outward form specimens of 
H. polypodioides in which the segments are narrow and the axils 
decidedly acute. In structure, however, it is quite distinct, being 
closely allied to the West Indian H. Pla togramma, and it is not 
without some hesitation that the plant is described as new. Its 
larger and apparently more robust fronds, together with its acute 
axils, furnish distinguishing macroscopic features : and coupled with 
these, the veins are found to be decidedly thicker, and more regularly 
developed than in H. Plagiogramma,. In all the Kew specimens of 
the West Indian plant, there is moreover a tendency for the veins to 
be incompletely joined to the main nerve, a peculiarit which is not 
found in the Kermadec specimens. These differences appear to be 
of sufficient importance to. warrant its being regarded as a distinct 
species, specially since there is no certain record of H. Plagio- 
gramma occurring outside the West Indian region, and the north of 
S. America 
The only other species to ‘whieh the plant could be referred is 
H. australis, Sond., but though the structure is similar, that species 
(judging from the ’ description) i is very much larger, resembling in 
habit H. serrata. A few doubtful records occur, ‘which suggest the 
possibility that the present plant has been collected in Australia, 
but it certainly does not spree with any species that have been 
described from that continen 
Perithalia capillaris, J. ae: 
Galaxaura sp. Z : 
This plant is precisely the same as that referred to by Mr. and 
meet Gepp (see note above). It was also found by the “ Herald” 
854. 
” Pertti capillacea, Born. et Thur., Notes Algol., p. 57, tab. 20. 
e specimens appear to agree with the European P. capillacea, 
but cystocarps are lacking, hence there is a certain amount of 
