PREFACE TO VOL. V. 
In closing the ‘ Phycologia Australica,’ after a monthly issue, commencing 
March 1858, and only recently partially interrupted, it becomes my 
duty publicly to return my acknowledgments to the friends and friendly 
correspondents who have assisted me throughout, either with specimens or 
in other ways. Already, in the dedication of the several volumes, I have 
endeavoured partially to express towards five of my most strenuous sup- 
porters the grateful feelings with which I have received their aid. But I 
still feel towards them, as if the debt of gratitude which is their due had 
been but imperfectly discharged. 
I wish therefore again, in few words, to recapitulate. 
To George Clifton, Esq., R.N., of Fremantle, Western Australia, whose 
name occurs so frequently throughout the volumes and in the Synopsis, I 
am indebted for some thousands of beautifully preserved specimens, in- 
cluding many species collected by no one else. His contributions com- 
menced in 1854, whilst I was resident in Western Australia, and have been 
regularly continued, at short intervals, up to the present time. Three new 
genera, Cliftonea, Bindera, and Encyothaha, besides many new species, 
prove the zeal and success with which Mr. Clifton has conducted his re- 
searches. 
Dr. Ferdinand Mueller, F.R.S., etc., of Melbourne, who never loses an 
opportunity of advancing the Natural History of Australia, has for many 
years diligently collected its Algee; and with great liberality has placed 
his gatherings at my disposal, and forwarded to me, from time to time, 
many important packets of Alge. To him botanists are indebted for most 
of what is yet known of the marine plants of North-Hast Australia, and 
Phycology owes to his researches the genera Nizymenia, Erythroclonium, 
and Brachycladia, besides many species. Some of Dr. Mueller’s earlier 
collections, described by Sonder, in vols. 25 and 26 of the ‘ Linneea,’ have 
not come into my hands, and several of the species named by Sonder re- 
main unknown to me. 
Ronald C. Gunn, Esq., F.R.S., whose name is indelibly associated with 
the botany of Tasmania, has largely assisted me im this work. From him 
