CHAPTEK Y. 



ffibc f 0tei=tik | ml 



CEBAMIUM. 



(For generic character of Ceramium, see page 46.) 



Cebamiuh G-kacillihum. — A beautiful little 

 plant, softer and more gelatinous than any other 

 British Ceramium. The common kinds are described 

 in the Half-tide Pool. 



This species is so small and slender that it can 

 scarcely be laid out properly on paper, the excessively 

 fine pinky threads tangle so hopelessly. The fruit 

 and texture of the plant is lovely under the micro- 

 scope, and we find it often at extreme low-water 

 mark on mussel shells and coralline. It is most 

 abundant on the south coast of England and in the 

 Channel Islands. 



Ceeamium Nodosum. — On sandy shores, often at 

 the roots of Zostera. The thread-like, white, trans- 

 parent fronds are knobbed at the joints with a band 

 of brownish-red minute cells. The fruit is a berry at 

 the end of a branch, or rows of tetraspores, one on 

 each joint of a ramulus. The tips of the branches are 

 decidedly forked, and the whole plant free from 

 spines. 



Ceeaiiiuh Steicttjm. — This will be distinguished 



