colour, in our specimen, has completely faded ; it is probably a crimson-lake 
or purple. The substance is membranous, and rather rigid, and in drying 
the frond imperfectly adheres to paper. No fructification observed. 
This, which is perhaps the very rarest of all Australian Alga, 
is also, next to Claudea, the most remarkable in form and evo- 
lution. I am therefore unwilling to close the ‘Puycotoeta Ats- 
TRALICA, without giving as satisfactory a figure of it as I am 
able, although my materials for so doing are very incomplete. 
Not having myself collected it, and not having received it from 
any of my many friends in Australia, I have used, in making the 
analysis, a small specimen formerly given by Lamouroux to Daw- 
son Turner, and now in the Hookerian Herbarium. The larger 
upper figure has been made partly from this specimen and partly 
adapted from Lamouroux’s plate. ‘Though it may not be quite 
true to nature, it will, I trust, be found tolerably characteristic, 
and is the best I can supply. 
The exact part of the coast where Peron collected this rarity 
is unknown; probably it was on the western or north-western 
seaboard. Mr. Clifton may yet have the honour of re-discovering 
the present species, as he has exclusively that of discovering its 
ally, C. pectinata (Pl. C.). The fruit of both species is still a 
desideratum. 
Fig. 1. Currronma LamMovurovuxtt,—the natural size. 2. Portion of a phyl- 
lodium ; one of the lacinize,—magnified. 
