i i i 
 On  the  other  hand,  its  bright  colour  will  make  it  be  easily  
 detected, when  specially  sought  for. 
 By  comparing  the  figure  now  given with  that  of Bangia  ceramicola  
 (Plate CCCXVII.),  the  differences  between  these  species  
 may  readily  be  seen ;  differences  which  preclude  us  from  regarding  
 them  as  states  of  the  same  plant,  as Kützing  supposes.  
 Possibly  that  acute  author,  not  having  seen  any  specimen  of  
 our  British  plant,  first  described  by  Capt.  Carmichael,  has  
 mistaken  some  other plant  for  it. 
 Fin-,  l'.  Portion  of  a  leaf of  Zostera marina,  fringed with  B angia  c il ia r is   -  
 °  the natural size.  2.  Fronds  of  Bangia  ciliaris,  of  different  diameters :  -   
 highly magnified. 
 '■1 
 m 
 lit  ■■