196 SEA AfOSSKS. 



inches high, with a spread of its muliitmlc of branches 

 all in one plane, in a general fan-shai)e<l outline, 

 fpiilc as ^ide as it is high. 'l*he flittened hran« ' • 

 spreail out widely from the two ctlges of the nuim 

 stem, antl divide and sul>-<livide profusely and if 

 uhirly. 'Hie only tlistinguishing |xiint in its ouiwird 

 ap|Karan<e is the fart that all leNser bran 



are Uirdcretl along Iwlh e<lges by 

 numlxrr of short, inwanl-curvetl, for^-anl-iMun 

 »pinc-like ramuli. of v »r'<»'>s Irn ths, from onc-lenih 

 to one-fourth of an ••.•., •• *- '»<! long mixed in 

 disrriminately. ITierc seems also lo lie an utter lark 

 of system in the branching of the plant. Its color 

 is a ilark retl. Upcoming much darker in drying. 1 1 

 adlicres imperfectly to pa|»er. 



OerxKi%,^FARLOUIA, Ag. 



FaIUX»WU LtlMPRESSA, Ao. 



This genus, which I*rof. .Xganlh has nameil in 

 honor of our countr>'man. Or. Karlow. of Harxard 

 College, who is doing so much fine work in jKrr- 

 fj< tin:;, and dissemminating a knowlt<lge of Amer 

 ican Algx. comprises two si>ecies, but one of which 

 1 shall uiulertake to give an account of. 



