166 THE MARINE BOTANIST. 



Laminaria digitata. Rare. Annual. Summer and 

 Autumn. Torquay. Falmoutli Bay, Miss Warren, 

 ^^ very rarely." Ilfracombe. Mineliead, Somerset, 

 occasionally cast ashore, I. G. Larne. Youghal. 

 Tramore. Miltown Malbay. Bute. Orkney, 



NITOPHYLLUM GMELINI.— GMELIN^S 

 NITOPHYLLUM. 



Frond two to four inches in breadth, with a 

 short stem, more or less fan-shaped, with a roundish 

 outline marked by veins, very evident in some speci- 

 mens, and less so in others ; ^' the margin smooth 

 and even," the plants which I find on the Mine- 

 head beach are very much jagged at the margin, 

 and the divisions lengthened out into narrow^ 

 pointed segments. Colour, a purplish red. Sub- 

 stance membranaceous, rather crisp when first 

 gathered. Tubercles scattered over the surface : 

 spots of tetraspores confined to the margin of the 

 frond, long and linear. Grows on rocks and 

 LaminaricB, &c. Rare. Annual. Summer. Coast 



