556 
Dr. W. H. Harvey’s Account of the Marine Botany of 
multifidis margine integris v. parce lobatis, lobulis deltoideo-subulatis acutis. King George’s 
Sound, rare (341). Frond broader and more dichotomous than in the preceding, spreading 
from a central point like a fan. 
250. Chrysymenia ohovata, Sond. I King George’s Sound and Eottnest (104). I have seen no 
fruit, and can throw no light upon the genus. But J. Agardh must have got hold of some- 
thing very different, or he would not refer this plant to Ehabdonia, to which it bears nei- 
ther internal nor external resemblance. 
251. Chylocladia secunda. Hook, and Harv. ! King George’s Sound (340). I have not compared 
with New Zealand specimens; but refer this plant from memory and description. 
252. CuYLocLADiA opuntioules, n. sp. ; fronde (6-10 uncias alta) inferne cartilaginea solidescente 
obsolete constricta dicliotoma, superne di-tri-chotoma articulato-constricta membranacea 
succo aquoso repleta, ramulis ad genicula verticillatis articulatis; articulis ramorum puncto 
affixis (cito in aqua dulci sejunctis) ovali-oblongis basi et apice obtusissimis ; cystocarpiis 
. . . Eottnest, Fremantle, and King George’s Sound (192). Either this or the follow- 
ing appears to be the “ Ch. articulata” of Australian botanists, but both differ essentially 
from each other, and from the European species so called. The present is remarkable for 
the rapidity with which its branches and ramuli fall to pieces, without dissolving, when 
thrown into fresh water. An hour or two is sufficient to denude a large specimen, leaving 
nothing behind but the cartilaginous main stem. The colour is a beautiful rosy purpla 
253. Chylocladia Cliftoni, n. sp. ; fronde (6-8 uncias longa) tenui membranacea succo gelatinoso 
repleta rosea e basi articulato-constricta trichotoma v. umbellatim ramosa; ramis ternis 
lere ad singula genicula egredientibus; ramulis sffipe numerosis; articulis inferioribus cla- 
vatis diametro 4-5-plo-longioribus, superioribus obovatis, ultimis ellipsoideis utrinque 
obtusis. Fremantle, G. Clifton, Esq. (265). A much more delicately membranous plant 
than Ch. articulata, of larger size, closely adhering to paper in drying, and soon dissolving 
in fresh water. It is nearly allied to Ch. Mulleri, Sond. ! but quite distinct. 
254. HALOSACCiON_ 7 ?r» 2 um, Post. andEup.? Fremantle, common (135, a). 
255. Halosaccion hydrophora, Post, and Eup. ? With the preceding ; also at King George’s Sound 
(135, /3). These are very similar in form to the Kamtchatkan plants to which I refer them ; 
but they closely adhere to paper, and are filled, when recent, with very slimy mucus. 
Both produce cystocarps. I am doubtful, whether as species they are sufficiently distinct 
one from another. 
256. Halymenia Floresia, Ag. Fremantle (314); also found by G. Clifton, Esq. 
257. Halymenia Kallymenioides, n. sp. ; fronde plana gelatinoso-membranacea foliacea inform! 
varie lobata et sinuata, margine glanduloso, laciniis acutis, cystocarpiis sparsis. Cast ashore 
at Fremantle, rare (174). This has the habit of Kallymenia, but exactly the structure of 
Halymenia. 
258. Gelinaria idvoidea, Sond. Fremantle and King George’s Sound (136). The structure, as 
already stated by Kiitzing, is very similar to that of Halymenia. The only difference is, that 
in Gelinaria the peripheric membrane is very thick and fleshy, composed of two or three 
rows of small polygonal cells, protected externally by a thick stratum of vertical, moniliform 
