ALGÆ NOVÆ ZELANDLE. 541 
basi attenuatis subpetiolatis apice obtusissimis subtrun- 
catis, ramulis altimis pusillis cilieeformibus linearibus 
obtusis brevibus alternis, ceramidiis oblongis pedicel- 
latis. 
Has. Paroah Bay, Lyall. (A single specimen.) 
Our specimen is 4 inches long, the stem 3 an inch broad 
in the middle, gradually tapering to the base, and very blunt 
at the apex. The plant probably attains to a much greater 
size. Colour a rosy pink. | 
71. Chylocladia parvula, Grev. 
Has. Akaroa, D'Urville, Raoul. 
72. Chylocladia Nove Zelandie, nobis; stipite brevi cylin- 
draceo mox in frondem lato-linearem ampliato, caule 
(juniori tantum viso) simplici compresso articulato-con- 
stricto, ramis oppositis verticillatisve basi attenuatis, arti- 
culis diametro duplo brevioribus, tetrasporis per ramulos 
sparsis. 
Has. Bay of Islands, parasitical on the base of Sphacelaria 
 hordeacea, Lyall. 
Doubts, chiefly respecting its genus must rest on this 
species till we shall have received more perfect specimens. 
It has something the habit of Champia, and may possibly 
be more correctly placed in that genus. Our largest speci- 
men is 3 inches long, and about a line in breadth, but 
it had only commenced throwing out its lateral branches, 
and we have yet to learn to what extent these are developed. —— 
The whole frond is divided by transverse diaphragms, at 
intervals of about half the diameter, and these are con- 
nected, as in Champia, by numerous rope-like threads. 
There is a slight contraction at the joints. The colour, pro- 
bably iridescent when growing, is a dull greenish suffused 
with pink. : 
DELESSERIE. 
73. Delesseria? t Recon Mont. = ew. Ana. Sc. Nat 
196. t. 5. f. 1. 
