Jan. 1895.] BOTANICAL SOCIETY OF EDINBURGH. 345 



Cladophora arda (Dillw.), Kiitz. — Abundant every svhere, 

 and in various forms, in pools between tide marks. 



Callithamnion tetragonum (With.), Ag. — Cast ashore at 

 the west of the island, after gales, in great abundance, and 

 in fine specimens ; epiphytic on Laminaria hypcrhorca. 

 These specimens are often associated with a Porphyra con- 

 sidered by Mr. Batters to be a variety of P. miniata, J. G. 

 Ag. ; non Diplodcrma miniata, Kjellm. 



After giving effect to the ten new species before men- 

 tioned, and to those which I found in South Eonaldsay 

 on a former occasion, the total for Orkney now amounts to 

 253. 



Gnaphalium undulatum, L., a Cudweed new to the 

 " London Catalogue," from Jersey. By A. Someryille, 

 B.Sc, F.L.S. 



During the past summer (1894) there has been found 

 growing on the island of Jersey a composite, Gnaphalium 

 undulatum, not included in our Floras nor in the " London 

 Catalogue " of British vascular plants. As it seemed quite 

 naturalised where met with, it may probably hereafter be 

 included as an addition to the British flora. I have 

 received dried specimens both from Lliss Dawber, of 

 Guernsey, and from the Rev. J. D. Gray, author of a 

 " Flora of Suffolk," and these I have the pleasure to show 

 to-night. 



Specimens of the plant have been submitted to Mr. J. 

 G. Baker, F.E.S., Keeper of the Herbarium at the Pioyal 

 Gardens, Kew, He confirms their identification, and in 

 writing of the species says : " It is a native of the Cape of 

 Good Hope. We have a French specimen labelled ' A 

 plant indigenous to the Cape of Good Hope, naturalised 

 now for forty years at Plouescat, and beginning to spread 

 along the coast.' " 



On a reference to Xymau's " Conspectus of the Floras of 

 Europe," I find G. nndulatum, L., stated to be a Cape 

 plant, but also now a colonist on the western coast of 

 France, occurring at Cherbourg, Lannevez, and elsewhere. 



