June, at Mounts Bay, Cornwall, the stems of L. bulbosa, are 

 almost exclusively infested with this rare plant. I did not find 

 this to be the case last summer at Valentia, where E. fasciculatus 

 was the prevailing parasite, nor has any other observer found 

 U. Hinchice in similar abundance. Nevertheless it is, perhaps, 

 not uncommon, but without a careful inspection may be over- 

 looked. A pocket lens is, however, amply sufficient to detect it, 

 the comb -like, often scorpioid, ramuli affording an obvious charac- 

 ter. When growing, as it sometimes does, mixed with E. silicu- 

 losus, the brighter and more glossy, and softer threads of the lat- 

 ter may be readily discriminated. 



I shall look forward with interest to its occurrence on the 

 Continent. It ought to inhabit most of the Atlantic shores of 

 Europe, but I cannot find any description that agrees with it. 



Fig. 1. Ectocarpus Hincksi.e : — natural size. 1. A portion of a filament. 

 3. A pectinate ranmlus. 4. Joints of the main filament. 5. Fertile ramidns. 

 6. The same, after the discharge of the sporaceous matter : — all more or 

 less highly magnified. 





