ALGZ OF TASMANIA. 429 
Species, and more luxuriant and delicate in form than those 
of any other country in the world. The FroripE (or red- 
coloured sea-weeds) of these shores are particularly beautiful 
and curious, especially those of the tribe RAodomelee, which 
there, seems to put on its highest development. We are 
less acquainted with the FucorpE (olive-coloured sea- 
weeds) ; and I would beg especially to request the attention 
of our colonial friends to these; and in doing so, would 
pray them to gather specimens of the whole frond, includin g 
the main stem from its base upwards. In general, the speci- 
mens of Fucoidee sent to Europe are so broken, that it is 
difficult to describe them, if new; or, to refer them to the 
several described species. "This is especially the case with 
Sargassa and Cystoseire. The species of these genera are 
known to be very variable in their characters, often produc- 
ing leaves of different form on different parts of the same 
frond, a circumstance that renders it particularly difficult, 
and often mischievous, to make descriptions from any but 
the most perfect specimens, or a series of such. 
Should I be so fortunate as to awaken an interest in this 
neglected department of Botany among Van Diemen's Land 
Botanists, and should they place in my hands sufficient 
materials for an * ALGoLOGIA TASMANICA,” it is my wish 
to undertake such a work in a separate form. It would be 
"Written in the English language, with detailed descriptions, 
and figures to illustrate the genera; and I should especially 
bear it in mind to make descriptions intelligible to the 
amateur botanist, whose knowledge of Botany is picked up 
9n a visit to the sea-shore in the summer time. 
W. H.H. 
Trinity College, Dublin, June 24, 1844. 
