4:0 THE MARINE BOTANIST. 



LAMINARIA LONGICRURIS. — LONG^ 

 STEMMED LAMINARIA. 



A species with a simple frond and very long- 

 stem^ in many respects resembling L. sacdiarina^ 

 but easily distinguished by the stem becoming 

 hollow and decreasing in diameter upwards. A 

 battered plant was picked up by Dr. W. H. Harvey, 

 at the Giant's Causeway, and another has been 

 found drifted ashore at Ardrossan, Ayrshire, by Dr. 

 Landsborough. This species abounds throug*hout 

 the Northern Ocean. Phy. Brit. PI. 339. 



LAMINARIA PHYLLITIS.— HARTS'- 

 TONGUE LAMINARIA. 



Not uncommon, and nearly resembles the last 

 species, of which it is probably only a variety. Dr. 

 Harvey remarks: — "The more lanceolate form, 

 delicate substance, and pale yellowish green colour, 

 constitute the chief marks of distinction." Grows 



