126 BRITISH SEA- WEEDS. \jSIelanos]_iermea. 



5. Laminahia fascia, Ag. This is found in England, 

 Scotland, and Ireland, on rocks and stones near low-water 

 mark. Annual. Summer. Pine specimens of it have lately 

 been found in abundance by Dr. Greville on the Black Rocks 

 at Leith. Professor Harvey, in his ^ Phycologia Britanuica,' 

 PL XLV., includes under it also L, dehilis, as a broader 

 and limberer variety. 



6. Lam IN ARIA longicruris. 



Tliis species, new to Britain, has lately been found on the 

 shore at Saltcoats by the author; and on the shore, under 

 Dunluce Castle, in the north of Ireland, by Professor 

 Harvey. 



At Plate ccLXXXix. of ' Phycologia Britannica,^ after the 

 description of Laminaria saccharina. Professor Harvey adds, 

 " A species with a simple frond, and very long stem 

 (X. longicnms), in many respects resembling L. saccharijiay 

 but readily distinguished by the stem becoming hollow, and 

 increasing in diameter upwards, abounds in the Northern 

 Ocean, and should be watched for on the shores of Orkney 

 and Shetland." On reading this, it immediately struck me 

 that this must be the plant which I had got on the Ayrshire 

 coast in November 1849, and which I had described to se- 

 veral algologists. As I had preserved it, I sent it to Dublin 

 to the Professor, telling him that I had got only the stem. 



