282 THE MARINE BOTANIST. 



DUDRESNAIA COCCINEA.— ROSE-RED 

 DUDRESNAIA. 



Frond four to ei^ht inches hig'h, irregnlarly 

 branched, tender and soft, of a beautiful red-pink 

 colour; under a lower power lens the fronds look 

 not unlike pieces of chenille. The fruit consists of 

 masses of minute spores and of tetraspores borne 

 abundantly on the ramuli. Southern shores of 

 England and Ireland. Very rare. Summer. 

 Brig-hton. Sidmouth. Torquay. Plymouth. Fal- 

 mouth Harbour, Miss Warren, " occasionally plen- 

 tiful." Jersey. Exmouth, Mrs. Gulson. 



DUDRESNAIA HUDSONI.— HUDSON'S 

 DUDRESNAIA. 



" Frond much branched, fiHform, pale reddish ; 

 branches mostly opposite, horizontal ; once or twice 

 pinnate ; ramuli numerous, irregular, obtuse. Sub- 

 stance tender and gelatinous." — Harv. On stones 



