SOME MARINE ALGH! FROM NEW SOUTH WALES 259 
Agardh. The cortical cells of H. kallymenioides are dense and 
vertically arranged, while those of C. Cliftoni are much more scat- 
tered, and in surface v view have a stellately snastomosing fala to 
l 
ance. In the former - the infra-cortical cells much 
smaller than in the lat And t once of H. kallymeniides 
is stuffed with ue threads, s of them and 
incrassate at the nodes; while in C. Clif the shone diecuijeriiee 
the internal vacuum appear very spar 
#: Agardh again discusses these Sait in his Till. Alg. Syst. 
vi. pp. 8-11, and, inter alia, draws attention to certain peculiar 
salon solidescent or granular nodes which sometimes occur 
peculiar nodes also characterize his subgenus Sebdenia, in which 
accordingly he places H. kallymenioides. Sebdenia has since been 
raised to generic rank, and is maintained as a genus by De Toni 
in his Sylloge Algarum, vol. iv. 1900, p. 580. In that work 
(p. 588) both the species under discussion find themselves to- 
gether again, and ranged side by side under Sebdenia, but with 
some doubt. 
GRATELOUPIA FILICINA Ag. Var. LUXURIANS, Fronde 
cartilaginea, permagna, cystocarpiis ser sy hese in medio 
fro a necnon in pinnis majoribus hae ie 
rm Cove, Sydney, July, 1901; A. HS. Lucas, no. 6. ‘It is 
very ction in the Harbour, just below low tide mark.”’ 
Fronds up to 22 cm. long, 8-6 mm. wide, linear, attenuated at 
base and apex, undivided, but bearing marginal pinne throughout 
pex, and 
2°5 mm. in width when dry. Cystocarps numerous and approxi- 
mated, immersed ee ae in the frond, but sprea ding also on to 
the larger pinne up to 0°5-2°0 cm. above their base. Colour 
reddish purple when dry. Substance cartilaginous, scarcely ad- 
hering to paper 
his is the finest specimen of Grateloupia foes that we have 
ever seen, and, though in that species the cystocarps are normally 
confined to the lateral pinne, we do not feel justified in making a 
new species of Mr. Lucas’s plant on such points as its luxuriant 
habit and the occurrence of the cystocarps on both pinne and frond. 
In the British Museum there are intermediate specimens that con- 
nect Mr. Lucas’s plant with the normal Atlantic form of G. /ilicina. 
One of these is no. 82 of Okamura’s Alye Japonice Exzsicc., which 
approaches our plant in size, but is thinner, adheres closely * 
y 
paper, ough its cys occur prin 
branches, some of them have spread on to the main frond ; 
y Mr. Tyson from He Point, Cape of Good Hope, 
. ee nsions, but steri d havi n crushed on 
