THE MARINE BOTANIST. 161 



borough. Coast of Cornwall, Aberdeen. Lossie- 

 mouth, Morayshire. Orkney. Galway. Kings- 

 town. 



DELESSERIA HYPOGLOSSUM.— PROLI- 

 FEROUS DELESSERIA. 



Fronds lance-shaped with a midrib, from which 

 arises a second series, resembling the first, and bear- 

 ing in the same manner another set of leaves. Tufted, 

 four to six inches high ; sometimes the first leaf is 

 very narrow, not more than a line in breadth, and 

 seldom more than two. In specimens gathered at 

 Bantry Bay by Miss Hutchins, of very large 

 size, the primary leaf is six to eight inches long, 

 and half an inch wide. Tubercles globose, on the 

 midrib, about the centre of the leaflet ; tetraspores 

 in linear lines or spots at each side the midrib, often 

 near its end. Substance thin and delicate, adhering 

 well to paper. Colour, a pinky-red, soon given out 

 to fii'esh water. Grows on rocks and other algae. 



M 



