ConfervecB.I cladophora. 313 



in the joints, having at some period a proper ciliary motion. — 

 The name means branch-beai'ing, Conferva being retained for the 

 species with simple filaments. 



1. Cladophoea EUPESTRis, Kutz. (Plate XYII. fig. 67, 

 branches, of natural size, and a branchlet, magnified.) 



Hab. On rocks in the sea, from high-water mark, and 

 often beyond that. iVnnual. Summer. A^ery common 

 and variable. 



Xear high- water mark it is a plain-looking plant, closely 

 tufted, and of a dirty greyish-green colour. When obtained 

 in favourable circumstances, in deep rock-pools, or by 

 dredging from deep water, it is truly a lovely. plant, of a 

 fine dark green. The only draw-back to it is that it does 

 not adhere well to paper in drying ; and this, w^e doubt not, 

 is the reason why tliis beautiful species is less frequently 

 seen in collections than we might expect. 



2. Cladophora rectangularis, Griffiths. (Plate XYII. 

 fig. 68, plant, natural size ; to the right, at the bottom of 

 the plate, there is a portion of a branch magnified.) 



Hab. In the sea, in deep water. Annual. Summer. 

 Torquay, Mr. Borrer, Mrs. Griffiths ; Galway, Mr. Reilly ; 

 it has not been found in Scotland ; in England it is very 

 rare, and it was thought to be so in Ireland, till it was 



