RED ALGuE. 191 



from low-water mark to several fathoms down. It 

 adheres very imperfectly to paper when dried, unless 

 allowed to stand for a considerable time before mount- 

 ing, in fresh water. Both cooked and in a raw state, 

 it is a common article of food among the peasantry 

 of the British Isles. ' In Norway and Sweden, it is 

 much used as the food of sheep and goats. Mrs. 

 Bingham reports it at Santa Barbara, common. 



Rhodymenia corallina. Grey. 



Starting in a cylindrical stem which sometimes is 

 as long as one-third of the whole plant, it soon 

 expands into a wide, fan-shaped, many times forking, 

 rose red frond. The plant is from four to eight inches 

 high. The lobes, which are generally of a uniform 

 width in the same plant, vary from one-third to three- 

 fourths of an inch, in different plants. The margins 

 of all parts are very entire and smooth, and the ends 

 nicely rounded. The substance is thin but firm. 

 It grows in rocky tide pools and in deep water, along 

 ihe whole coast of California, very common both north 

 and south. It is not found on the Atlantic coast. 



