258 BRITISH SEA-WEEDS. {lUiodospermeai. 



handsome plant. It is occasionally found on the coast of 

 Ayrshire, — and much more frequently on the Irish coast_, — 

 in such a state as to be truly magnificent. In some speci- 

 mens collected by Dr. Drummond, Belfast, the frond or 

 winged membrane is half an inch broad. I have a specimen 

 of this description gathered by Mrs. Lyon at Glenarm, and 

 more than one procured by Mrs. Ovens and Major Martin 

 in Lough Swilly, of which the winged membranes are not 

 only broad, but the whole plant is larger than usual, and 

 the colour a fine rich dark purple, so that at first a person 

 would take it for a member of a nobler tribe than our 

 every-day acquaintance, Bdesserla alata. 



4. Delesseuia ANGUSTissiMA, GnllJ. 



Hab. On the stems of Laminaria dlrjitaia. Perennial. 

 "Winter and spring. liather rare. Lossiemouth, Mr. Brodie ; 

 Aberdeen, Dr. Dickie ; Cornwall, Mr. Ralfs ; Orkney, Rev. 

 Gilbert Laing and Rev. J. H. Pollexfen; island of Islay, 

 Lady Emma Campbell. 



This is one of the Algoi vexatce. AYlien found by Mr. 

 Brodie in the north of Scotland about forty years ago, and 

 sent to ^Ir. Turner, they agreed in considering it a variety 

 of B. alata, naming it J). angvMlsslma. In deference to a 

 person of remarkably sound judgment, and who is seldom 



