A CATALOGUE 



OF THE 



BRITISH MARINE ALG^E 



BY 







E. A. L. BATTERS, LL.B., B.A., F.L.S. 



MORE than ten years have now elapsed since the appearance of the 

 " Eevised List" by Mr. Holmes and myself, which still remains the 

 most recent catalogue of the British Marine Algae. In the mean- 

 time many additions have been made to our Marine Flora, and very 

 numerous changes both in nomenclature and classification have 

 been rendered necessary by our increased knowledge of the subject. 

 I hope, therefore, that a catalogue incorporating all the more recent 

 alterations may not prove wholly unacceptable to algologists. 



I have attempted to roughly indicate the distribution of the 

 species on the British coasts, and with that object in view I have 

 examined many important collections, both public and private, more 

 especially those of Buddie, Petiver, Uvedale, Ed. Forster, Rev. 

 Hugh Davies, the remnants of Hudson's herbarium, and the 

 general British Collection in the British Museum; those of Bishop 

 Goodenough, Dawson Turner, Sir W. Hooker, Capt. Carmichael, 

 and others at Kew ; those of Stackhouse, Mrs. Griffiths, Dr. Cocks, 

 and a duplicate set of Prof. W. H. Harvey's British Marine Algai 

 in the possession of the Linnean Society ; the five fasciculi of Mrs. 

 Wyatt's " Alga3 Danmonienses," the ten of Mr. Holmes's valuable 

 "Algae BritannicaB Rariores Exsiccate," and many private col- 

 lections, in addition to those mentioned in the introduction to the 

 " Pievised List " by Mr. Holmes and myself, the Pollexfeu herbarium, 

 and the beautiful series of microscopic preparations of British 

 Marine Algae made by the late Mr. T. H. Buffliain, now forming 

 part of my own extensive collection. I have also consulted the 

 earlier works dealing with the subject, many local Floras, and the 

 periodical literature up to the end of the year 1900. I am also 

 much indebted to Mr. E. M. Holmes for much valuable information 

 on this subject, and for allowing me to inspect many valuable spe- 

 cimens from his unrivalled collection of our native seaweeds. The 

 data, however, are still so few, that only a very imperfect survey 

 can be made ; many species being, undoubtedly, much more widely 

 distributed on our coasts than would appear to be the case from an 



JOURNAL OF BOTANY, MARCH, 1902.] l> 



