218 SEA MOSSES, 



widest part, the clefts run to the end outward, and 

 the segments are arranged Uke the fingers of the 

 hand, when spread apart somewhat ; or the frond may- 

 be long and narrow, with an occasional fork. 



In every case, except that of the deeply cleft fronds, 

 the lobes are bordered on both edges by a multitude 

 of tongue-shaped leaflets, from one to two inches 

 long, and from one-eighth to one-half an inch wide, 

 much attenuated at base, and with a somewhat 

 rounded point at top. The color is a deep, darkish 

 red. The substance is firm, and in old plants, thick 

 and hard when dry. The fruit, in prominent warts, 

 is scattered over the surface of the frond. The plants 

 in my herbarium range from four to fourteen inches 

 in height. It grows between tides at all seasons, 

 and is not uncommon at Santa Cruz, and other parts 

 of the coast 



Callophyllis flabellulata, Harv. 



This species is more decidedly fan-shaped in 

 outline, and in the division and spread of its main 

 branches, than either of the other species. The prin- 

 ciple stem forks, but not widely, and these again 

 fork ; then, at a distance of half an inch or so, they 

 divide into half a dozen different segments, each of 

 which repeats the same process, two or three times. 

 The segments are from one-fourth to one-sixteenth of 



