object; but in age its tufts become drawn out to a great length, 
and its filaments twisted mto green, mucous ropes, which stick 
to any object which comes near them. The botanist who dredges 
where this plant grows, however much he may admire it on the 
first few hauls, will soon wish that it was not quite so affec- 
tionate. 
In this country it was first noticed by Mr. Mc’ Calla, who, 
observing that it was different from any British species, and 
believing it to be new, published specimens in his ‘ Algae Hiber- 
nice,’ under the name Conferva Kaneana, dedicating the species 
to Lady Kane, authoress of ‘The Irish Flora,’ who happened to 
be in the boat when the plant was discovered. I should have 
adopted this name had I not found, in Sir W. J. Hooker’s rich 
Herbarium, a specimen of the C. Rudolphiana, of Agardh, 
communicated by that author, which agrees in all essential par- 
ticulars with our Irish plant; as does also the short description 
given by Agardh, in the ‘ Bot. Zeitung.’* Professor Kiitzing, 
however, informs me that what he has received under the name 
C. Rudolphiana, from Biassoletto, is a different plant, and that 
Agardh has distributed several different species under this name. _ 
This may possibly be so, yet I can hardly set aside the authority 
of the original specimen above mentioned; supported by the 
character—a very unusual one—of the occasional swelling of the 
jomts, which I observed before I had seen Agardh’s, C. Rudol- 
phiana, or was aware what character he had assigned to it. 
Among British species, the nearest affinity of C. Rodolphiana, 
is with C. gracilis, with which it agrees in the ramification, and 
in the great length of the alternate ramuli. But its filaments 
are very much more slender, its substance softer, and more 
flaccid, and its joints very much longer. The great length of the 
jomts will also distinguish it from C. aléida, which it likewise 
resembles. 
* C. Rudolphiana ; filis di-trichotomis ramosissimis attenuatis mucosis, arti- 
culis diametrum pluries superantibus, hic illic in globos elipticos inflatis. 4g. in 
Bot. Zeit. vol. x. p. 636. 
Fig. 1. Crapapnora Ruponputana :—of the natural size. 2. A portion of a 
branch. 3. A joint from the filaments. 4. One of the swollen joints :— 
all more or less magnified. 
