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Ceramiea.'] callith amnion. 185 



21. Callith AMNION pedicellatum, Agardh. 



Hab. On rocks in the sea. Not uncommon. Summer. 

 It has been found in many places in England and Ireland. 

 In Scotland it is rarer ; it has however been found by the 

 Eev. Mr. Pollexfen^ in Orkney ; by Major Martin and D. L. 

 in Ayrshire ; by D. L., jun., in November 1848, in fine 

 fructification^ in a rock-pool at Joppa^ near Edinburgh. 

 Very fine specimens were dredged by D. L. in Lamlash Bay. 



22. Callith AMNION floe,idulum_, Agardh. 



Hab. On sand-covered rocks at all seasons. Abundant 

 on the coast of Galway, where it was first observed by 

 Dr. J. T. Mackay ; by the Eev. Gilbert Laing, in the north 

 of Ireland. We have not heard of its being found in Scot- 

 laud^ except by the Eev. Mr. Pollexfen^ in Orkney. 



The fructification was discovered by Mr. Ealfs on speci- 

 mens found at the Land's End. It is very abundant in the 

 west of Ireland^ forming on rocks little cushions, which, 

 when washed ashore in the end of summer, are called/^* 

 by the country people, and collected as manure. 



23. Callith AMNION Eothii, Lynghye. 



Hab. On rocks in the sea. Perennial. Winter. Not 

 unlike the preceding, but smaller, and well distinguished 

 from it by different fructification, as exhibited in ^ Phyco- 



