MARINE ALGAE. 17 



Excluding " waifs," etc., the species are distributed among the great 

 groups in the following proportions : My.vophyceae, 34 ; Chlorophyceae, 74 ; 

 Fucoideae, 125 ; Rhodophyceae, 162. 



The total number of species of British Marine Algae probably falls short 

 of 750, and out of this the local flora contains 395. 



E. A. L. BATTERS. 



REFERENCE KEY. 



1. E. A. L. Batters : " Handlist of the Algae of the Clvde Sea-area." 

 (Journal of Botany, 1891, pp. 209-214 ; 229-236 ; 272-283). N.B. This List 

 was compiled from former records supplemented by a careful examination of 

 the Herbarium of Mrs. and the late Dr. Robertson, the National collections at 

 Kew and the British Museum, the Herbarium of Glasgow University, etc. 

 2. Mrs. and the late Dr. David Robertson's Herbarium and collection of 

 microscope slides. 3. E. A. L. Batters : "Some new British Marine Algae." 

 (Journal of Botany, 1895, pp. 274-6; 1896, 6-11; 384-90; 1897, 433-400; 

 1900, 369-79). 4. E. A. L. Batters in lit. 5. E. A. L. Batters : "New 

 or Critical British Marine Algae." (Grevillea, vol. xxi., pp. 13-23, 49-53, 

 97-100. Vol. xxii., pp. 20-24, 50-52, 90-92, 114-117. 6. Prof. R. Kennedy's 

 Herbarium and microscope slides, Glasgow and West of Scotland Technical 

 College. 7. E. M. Holmes in lit. 8. J. A. Mahoney : " List of the Marine 

 Algae of Clydesdale." (Notes on the Flora and Fauna of the West of Scotland, 

 1876). 9. R. K. Greville : Scottish Gryptogamic Flora, 1823-1828. 10. Dr. 

 Gregorsons : Proceedings Natural History Society of Glasgow, vols. i. and ii., 

 pp. 65, 66, 78, etc. 11. Rev. D. Landsborough : A popular History of 

 British Seaweeds, Ed. II., 1851. 12. J. Paterson, see 1. 13. E. M. Holmes : 

 "New British Marine Algae." (Grevillea, vol. x., pp. 110-111. Vol. xi., 

 pp. 140-142. 14. Dr. Thompson, see 11. 15. Mrs. Stark, see 11. 16. Major 

 Martin, see 11. 17. MSS. of the late Prof. Balfour's Excursions to the 

 Island of Arran. 18. Dr. W. H. Harvey : Phycologia Britannica, 1846-1851. 

 19. Geo. Brebner, see 3. 20. E. A. L. Betters: "Additional Notes on the 

 Mariue Algae of the Clyde Sea-area." (Journal of Botany, June, 1893, pp. 

 170-177). "21. Dr. P. R. Greville : Algae Britannicae, 1830. 22. J. Light- 

 foot : Flora Scotica, 1777. 23. S. M. Wellwood in lit. 24. Mrs. Ovens, 

 see 11. 25. E. A. L. Batters: "On some new British Marine Algae." 

 (Annals of Botany, vol. ix., pp. 307-321, June 1895). 26. Mrs. Gibb, see 11. 

 27. Miss M'Leish, see 11. 28. Rev. M. Lambie, see 11. 29. Mr. Gourlie, 

 see 11. 30. Rev. Gilbert Laing, see 11. 31. W. G. Johnstone and A. Croall : 

 The Nature-painted British Seaweeds, 1859-1866. 32. W. H. Grattan : 

 British Marine Algae, 1873. 



A. MYXOPHYCEAE. 

 Merismopaedia glauca, Nag. E, Kames Bay 1. 



CHAMAESIPHOXACEAE. 



Dermocarpa prasina, Born. E F, Bute, Cumbrae 1 & 2, Kilchattan, 20. 



D. violacea, Cm. B, Gareloch 20. 



D. Schonsboei, Born. EF, Kames 20, Cumbrae 2. 



Hyella caespitosa, Born et Flak.E F, Bute 20, Saltcoats 1, Cumbrae 2. 



HORMOGONEAE. 



1 Homocysteae. 



Spirulina major, Kutz.Y, Millport l. 

 S. subsalsa, Oersted. E B 3 , Corriegills, Wemyss Bay 1. 

 Oscillatoria subuliformis, Thw. F, Largs 8. 



B 



