266 Murray and Boodle.— A structural and 
green colour. Kiitzing describes and figures 1 two forms, 
which he names S. scoparia and delicatula . They were 
both collected by Vieiliard in New Caledonia. Dr. Suringar, 
the happy possessor of the Kutziog Herbarium, has been 
good enough to lend us the type specimen of S. scoparia, 
and, from an inspection of it, we have no hesitation in ex- 
cluding it from the genus. It agrees in all respects with the 
neighbouring genus Apjohnia , and though hardly in perfect 
accord with A. laete-virens , Harv., we have not sufficient 
reason to separate it from that form. S. delicatula is no 
doubt a Struvea , and from a comparison of Harvey’s speci- 
mens of his Cladophcra ? anastomosans 2 (published seven 
years before) there appears to be equally little doubt that 
it too belongs to the same species. Dr. Grunow has kindly 
called our attention to certain Ceylon specimens collected 
by Mr. Ferguson (No. 98), and it is right to add that the 
examination of a series of these has materially helped us to 
this conclusion, in which we find we have been anticipated 
by M. Crouan 3 . The next form recorded was collected by 
the ‘ Challenger Expedition ’ from thirty-one fathoms off 
Bermuda, and described by Prof. Dickie 4 under the name 
of S. ramosa. Since then Drs. Piccone and Grunow have 
published 5 a form from the Canary Islands to which 
the name was given of S. anastomosans (Harv.) var. cana - 
riensis. Dr. Piccone mentions, in a note, that he intended 
to make this plant the type of a new genus to be called 
C or mo die ty on, but he wisely gave way to the eminent Dr. 
Grunow, who insisted on its being a Struvea. The authors, 
however, are mistaken in quoting S. anastomosans , Harv., 
since the Cladophora anastomosans of Harvey, although 
published previously, is none other than S. delicatula , Kiitz. 
In the second place, Dr. Grunow, never having seen specimens 
of S', ramosa , Dickie, was thus prevented from placing the 
1 Tab. Phyc. vol. xvi. p. 1, Tab. 2. 2 Phyc. Austr. vol. ii. pi. 101. 
3 Maze et Schramm, Algues de la Guadeloupe. 
4 Linn. Soc. Journ.Bot., vol. xiv. 
5 Crociera del Corsaro. Alghe, 1884. 
