THE MARINE BOTANIST. Q\) 



ECTOCARPUS LITTORALIS.— SHORE 

 ECTOCARPUS. 



Filaments coarser than in the preceding kind, 

 from six to twelve inches long ; when young forming 

 small tufts of an olive-green colour, changing to 

 brown at a more advanced period, and then frequently 

 floated ashore in abundance. It is a very common 

 plant, growing indifferently upon the larger algse 

 and submerged substances within the tidal range, 

 and is to be found throughout the year. Fructifi- 

 cation, Imbedded in the substance of the branches 

 in the form of oblong swellings. 



ECTOCARPUS MERTENSII.— MERTENS' 

 ECTOCARPUS. 



A beautiful and rare species, with slender 

 branches, not entangled, bearing spreading ramuli. 

 Colour olive-green. In ramification this plant bears 

 a considerable resemblance to the Sphacelaria genus, 

 but differs from it in its flaccid substance. Grows 

 on mud- covered rocks, near low water mark, and 



