298 THE MARINE BOTANIST. 



irregularly branched^ branches spreading", with hori- 

 zontal opposite ramuli. Colour a full green, fading 

 in the herbarium. Articulations uniform through- 

 out, usually twice or thrice as long as broad. '^ One 

 of the most beautiful and distinct, as it is the rarest, 

 of the genus." 



C Macallana, On the sandy bottom of the 

 sea, in four to ten fathoms water. Annual. 

 Summer. Dredged in Roundstone Bay, abun- 

 dantly. ^^ This has much the outer habit of C. 

 rectangularis, mixed with which it often occurs at 

 Roundstone, but may at once be known by the 

 secund or alternate ramuli. It is named in honour 

 of its discoverer, the late Mr. William M^Calla, a 

 most successful and acute explorer of Roundstone 

 and the neighbouring bays, who added many new 

 species to the Fauna and Flora of Ireland, and 

 whose early death is much to be regretted. Mr. 

 M^Calla fell a victim to the cholera, in May, 1849." 

 — Harv.y Man., p. 200. 



C Hutchinsice, Grows on rocks, &c., near low 

 water-mark. Rather rare. Bantry Bay. Belfast 



