OF ARTS AND SCIENCES. 215 



Phyllaria dermatodea, Kjellm., N. Isliufv. Algfl., pp. 278 to 282, 

 Tuf. 20j Figs. 1 to 4, 18«3. 



Phyllana lorea, Kjellm., N. Ishafv. Algfl., pp. 282 and 283, Taf. 24, 

 Figs. 1-3, Taf. 25, Figs. 5, G, 1883. 



Phyllana dermatodea, Kjellm., Arct. Alg., pp. 223 to 225, Taf. 25, 

 Figs. 1 to 4, 1883. 



Phyllana lorea, Kjellm., Arct. Alg., pp. 22G and 227, Taf. 24, Figs. 

 1 to 3, Taf. 25, Figs. 5, 6, 1883. 



Phyllaria dermatodea, Wille, Bidr. Alg. Phys. Anat., pp. 27, 28, 

 and 81, 1885. 



Laminar ia dermatodea, Ue Toui et David, Catal. Herb. Zanardiui, 

 p. 115, 1885. 



Phyllaria dermatodea, Wille, Bot. Centralbl., Bd. XXVII. p. 246, 

 1886. 



Phyllaria lorea, Strijmfelt, Algveg. Isl., pp. 42 and 76, 1886. 



Saccorhiza dermatodea, Hay, Free. Roy. Soc. Canada, Vol. V. 

 Sec. IV. p. 172, 1888. 



Saccorhiza dermatodea, Ilariot, Journ. de Bot., p. 182, 1889. 



Phyllaria dermatodea, Foslie, East Fiuraark Algae, pp. 74 to 76, 1890. 



Exsiccatce. 



Laminaria lorea, Aresch., Alg. Scand. Exss., No. 213. 

 Saccorhiza dermatodea, Farl., Eaton and Anders., Alg. Am. Bor. 

 Exss., No. 120, 1879. 



I desire to express my thanks to Prof. W. G. Farlow of Harvard 

 University, in whose laboratory and under wiiose direction the present 

 paper was prepared, for assistance at every point; also to Dr. G. H. 

 Parker of Harvard University, and to Mr. F. S. Collins of Maiden, 

 Mass., for valuable aid in the way of materials. 



Cryptogamic Laboratory, Harvard University, 

 June 1, 1891. 



