RED ALG^. 217 



an inch wide, and six inches long ; or very wide, 

 from an inch to an inch and a quarter broad, and 

 no more than half a foot long. 



But the deeply cleft, widely spreading, flat frond, 

 with the segments wedge-shaped, and the extreme 

 ends of all the parts notched in, more or less angularly, 

 are unmistakable marks of the species under all forms. 

 It adheres fairly well to paper. Color, from a darkish 

 to a bright red. The older parts of the plant are 

 thick. The fruit appears in hemispherical warts, 

 scattered over the surface of the frond. Dr. Farlow 

 expressed to me the opinion, that California plants, 

 which have been distributed under the name C, 

 discigera, are only extreme forms of C. variegata, 

 while those which have been called by collectors C, 

 ornata, are really none other than members of the 

 species to be next described, viz. : 



Callophyllis furcata, Farlow. . , 



Starting from a mere point, where the frond 

 is attached, it widens out till it is from half 

 an inch to an inch wide, and several inches 

 long, and then divides in various ways, mostly 

 by the process of splitting. The clefts are narrow 

 and deep, and some of them run near to the 

 base of the frond ; or starting together from the 



