242 SEA MOSSES. 



CERAMIUM DESLONGCHAMPSn, Ch. 



This species Harvey describes as C. Uooperi, in 

 honor of his friend, Mr. J. Hooper, of Brooklyn, 

 N. Y., an enthusiastic and intelligent Algologist, 

 who with Professor Bailey and others, as I have 

 already mentioned in the " Introdction," did much 

 in that time, to help forward Harvey's study of our 

 plants. They all find ample acknowledgement in 

 the pages of the " Nereis." 



But it is conceded now that this is no new 

 species, but an old and not uncommon one, on 

 the shores of Europe. It is common along our 

 northern coast, north of Nahant. I found it in 

 plenty at Marblehead, and Mr. Collins at Nahant 

 on the sides of perpendicular rocks, overhung with 

 Fuci. Mrs. Davis collects it on rocks in tide pools 

 at Gloucester. Professor Verrill found it on the 

 piles of the wharf at Eastport, and Mr. Prudden at 

 Grand Manan. It grows from two to four or five 

 inches high, from a mass of creeping filaments. 

 The fronds are not much coarser than human hair, 

 and divide throughout by true but not very wide, 

 forkings. The apices are attenuated, sharply pointed, 

 and but slightly incurved or bent, mostly straight 

 or awl-shaped. 



Under a lens the markings or variegated bands 



