BOTANICAL INFORMATION. 258 
Society, for the purpose of exploring the natural history of the southern 
coasts of that continent, has made arrangements for extensively collect- 
ing Marine 4lge, a portion of which (not required for the University 
Herbarium) will be offered for sale. 
The Australian shores are well known to be rich in varied and curi- 
ous forms of Algæ, Among the Olive-coloured Algæ, many of the most 
remarkable Fucoids are either peculiar to those shores, or there assume 
their most remarkable development. The Fucaceous genera Sarcophycus, 
Myriodesma, Carpoglossum, Landsburgia, Hormosira, Notheia, Cysto- 
Phora, Scaberia, Marginaria, Scytothalia, Seirococcus, and Carpophyllum 
are peculiar to New Holland and New Zealand. Among Laminariee 
several Ecklonie, and among Sporochnoidez some remarkable Sporochni 
and Carpomitre occur. Of the other Orders of the olive series there 
are also several beautiful forms, though less characteristically peculiar 
than those just named. 
Among Rhodosperms, the remarkable forms are much too many to 
enumerate. Here occur the most beautiful of the net-work Algs, as 
Claudea, Thuretia, Hanowia, Halophlegma, etc. The genera Amansia, 
Polleafenia, Dictymenia, Epineuron, Lenormandia, Jeannerettia, Poly- 
phacum, Polyzonia, are among the most interesting Rhodomeliee ; 
while numerous beautiful species of Dasya and. Polysiphonia complete 
that Order. Among Laurenceiacesm, the exquisite Delisiæ, with Aspa- 
ragopsis, Ptilonia, Champia, and numerous Lawrencie, are found. Of 
Sphzerococcoidez, many beautiful Delesserie and Nitophylla, Hemineura, 
Thysanocladia, Dicranema, Sarcodia, Melanthalia, Eucheuma, Phacelo- 
carpus, ete. Several fine Wrangelia; Gelidium, Pterocladia; Apophiea, 
Curdiea ; many superb Plocamia ; Stenogramma, Rhodophyllis, Are- 
schougia, Rhabdonia ; several beautiful Callithamnia, Ceramia, Griffithsie, | 
and Ptilote ; Ballia, Dasyphila, Ptilocladia, etc., are included in the 
extensive catalogue. 
Among Chlorosperms, numerous and very curious Caulerpe, and ae 
several genera of Siphonee, with the usual proportion of Coufervaceg, 
may be noticed. 
As yet the Australian Coasts have been very imperfectly explored : 
` —naturalists and collectors who have hitherto visited Australia having 
chiefly attended to other departments, and but eursorily collected and 
often carelessly preserved the Marine Algæ. While Dr. Harvey’s 
duties will comprise the collection of all marine productions, his atten- 
