KEY TO THE GENERA OF THE PACIFIC 



COAST • 



I. I'rOM) MF-MIlRANW>t'S. 



I. FroHti piain, mosf/y untiiviJedy smooth^ or 



roui^fufUii only h\ sffd ressfls. 



(<i.) Thick, large, rcilcliih brown. 



Saro 



(/>.) I'hinncr. Largo, imrjili-sh color. JruLra. 

 (<'.) Umlividctl, braiu hctl or cleft ; brown, 

 purjjlc, or green. Gralehupia. 



2. Fnmd thick, {or^rfd with pappili. 



Undiviile*!, forkeii or irreguLirly branched, 

 deep red, or purple. Gigartina. 



3. Frond narnnvfr, thick, Uathfry, smooth. 



Sword-sha|)cd leaHeUi from sidr nr . ix] 

 of main frond; ibrk red brou... 



Prionitii Andersonii. 

 4. Frond much divided, 

 (a.) 'I*hin, tleeply lolx-d, or forked, mostly 

 dark red ; not adhering well. 



Nitophyllum. 

 {b.) Tliickcr, more intricately divided, more 

 brilliant red color, adheres. 



Callophylhs. 



* Only tko«c Gcocra which have tpccin peculiar \o the Pacific G»st are io- 

 ckadcd in thU Key, the rc»l viU be louud 10 thr -'S^ 



