70 



NOTES ON THE DISTRIBUTION OF ALGiE. 



By G, Dickie, A.M., M.D. 



{Read at the Meeting of the Botanical Society of Edinburgh, Jan. \2th, 1871.) 



The result of dredging near the " Maiden Eocks" in relation to range 

 in depth of Algfe, formed the subject of a paper to the Society in 1869 ; 

 having some years before made a passage in the lighthouse tender from 

 Larne, the nearest port, I have thought that notes of the AlgjB found on 

 them might deserve to be recorded, especially when contrasted Avith those 

 of the neighbouring shore. The " Maidens" are about six to seven miles 

 from the Antrim coast, they are in close proximity, of small extent, and 

 each mainly occupied by lighthouse-buildings, presenting but few crevices 

 where land plants can grow, of which I only found three, viz. Matricaria 

 iuodora, var. /3. maritima, and two species of Atriplex. The two small 

 islands in question rise abruptly, having deep water near them ; they are 

 in fact the rugged tops of a submerged mass of basalt. 



The visit was made about the end of June (a month or two later would 

 have been more favo\irable), the time allowed was limited ; I, however, col- 

 lected every seaweed that could be seen, and all were kept separate in my 

 herbarium. 



The following is a list : — 



LaMINARIACE/D. 



Alaria esculenta, Lyngb. Chorda lomentariu, Lyngb. 



Laminaria digitata, Lamour. 



ECTOCAKPAUE^. 



Edocarpus spliceroplioriis^ Carm. | E. litloi'ulis, Lyngb. 



Khodomelace.e. 

 Odontlialia dentata, Lyngb. I P. urceolata, Grev. 



Polysiphonia fastigiata, Grev. | P. Brodicei, Grev. 



Laurenciace^. 

 Chylocladia articulata, Grev. 



SQUAMARIE.E. 



Hildenbrautia rubra, Harv. 



CORALLINACE.^. 



Melobesia pustulata, Lam. 



Delesseriace.e. 



Pelesseria siimosa, Lamour.* I JSiitophjllnni laceratuiii, Grev. 



D. alata, Lamour. I 



EnODYMENIACEiE. 



Rliodymenia jjahnata, Grev. 



Hydro la path urn sangn Ineum, 

 Stackh.f 



* This is the species which was dredged iu 70-80 fathoms, near the " Maidens," 

 as reported in a former communication. 



t Wormskioldia having been applied to a geuus of flowering plants by De 



