200 THE MARINE BOTANIST. 



Britannica/' PL 337. It is a large and elegant 

 plant not likely to be overlooked even by the most 

 inexperienced collector. Sphserococcus coronopi- 

 folius resembles it a good deal in miniature, and 

 the tubercles are very similar in shape, but the 

 pinnae in G. cartilagineum are regularly alternate, 

 which gives the plant a beautiful fern-like appear- 

 ance. Dr. Harvey informs me in a letter, ^^ That 

 this plant is common at the Cape of Good Hope 

 and on the Pacijic coast of North America, but we 

 have no certain knowledge of any station nearer to 

 England than the Cape. Old writers mention 

 several places in the Mediterranean and even in the 

 North sea, but these stations are omitted by 

 moderns^ I fear it has no just claim on the British 

 Flora." 



GIGARTINA. 



Name meaning a grape-shot^ which the tubercles resemble. 



Frond cartilaginous (filiform, compressed or flat), 



irregularly divided, purple or dark red. Fructifica- 



