1C2 BRITISH SEA- WEEDS. {jilelanosperwece. 



Land's End. Of this I have fine specimens from Mrs. 

 Griffiths. 



^ ^ Secondary branches opposite. 



11. EcTOCARPUS GRANULOSUS, AgavcVi. 



Hal). In rock-pools on other Algce. Not uncommon in 

 Engknd and Ireland, and I find that it is pretty common 

 on the coast of Ayrshire. 



It is a handsome plant, as may be seen by PL cc. in 

 ' Phycologia Britannica.' It differs from its British con- 

 geners, by bearing dark-coloured elliptical capsules or utri- 

 cles on the upper side of the opposite brandies or branchlets. 

 The fruit is often very abundant, and is quite visible by the 

 naked eve. 



12. EcTOCARPUS sPHyEROPHORUS, Curmchatl. 



Hab. On Ptilota sericea or CladopJwra rupestris. This 

 has been found in England, Scotland, and Ireland, by Capt. 

 Carmichael, Mrs. Griffiths, ]\Ir. Ralfs, and Miss Ilutcliins. 



It is not a common plant, and where it is found, Mr. 

 Ralfs observes, that " it is not dilTused througli the bay, 

 but is confined to the space of a few rocks, on which it 

 forms, as it were, a colony, or is gregarious." It seems 

 also to confine itself to 1^. sericea and C. rupestris. See a 



