96 THE MARINE BOTANIST. 



MYRIOTRICHIA FILIFORMIS.— SLENDER 

 MYRIOTRICHIA. 



Fronds an inch or more in length, very slender, 

 straight or often twisted into bundles ; the stem at 

 intervals set with dark-colom^ed knobs, which, 

 under the mieroscope, are found to consist of very 

 minute ramuli. This is described in the ^^ Manual" 

 as a much taller and slenderer plant than the for- 

 mer, and easily known from it by the interrupted 

 ramuli, which are much shorter in this, and do 

 not increase in length towards the upper part of 

 the stem. 



Parasitical on C, lomentaria and Asperococcus 

 echinatus at times accompanying the former species. 



