93 THE MARINE BOTANIST. 



dense and tufted^ in reality they are secnnd on 

 the branchlets. Silicules sessile^ ovate^ pointed, 

 secimd on the ramnli. Colour a dark olive-green. 



E, HincksicB. Parasitical on L, hulbosa, probably 

 not nncommon. Coasts of England, Ireland, and 

 Scotland. First noticed at Ballycastle, Giant's 

 Causeway, by Miss Hincks. In Mount's Bay, Corn- 

 wall, plentiful on the stems of L, bulbosa, Ply- 

 mouth. Torbay. Exmouth, Mrs. Gulson. Aberdeen. 

 Dark olive-green, tufted, branches furnished with 

 secund ramuli, pectinated on their upper side. 

 suicides conical, sessile, lining the inner face of 

 the ramuli. 



B. crinitus. Spreads over mud in extensive 

 fleeces of a bright bay colour. Spores globose, 

 scattered, sessile. Appin, Argyleshire. Water- 

 mouth in North Devon. 



E, pusillus. Parasitical on Polysiphonia in- 

 grescenSy and other algse. ^^Like a tuft of pale 

 brown wool." Mrs. Grifliths. Spores sessile, 

 roundish oblong, plentiful, often two or three to- 

 gether, or whorled. Torquay and Land's End. 



