4 





k 



4 



Saunders : Sipiioneous Algae ot the Pacific Coast 



explanation of Plate 350 



Fig. If a^ b and c. Codium mucronattim Californictitn J. Ag. a^ a single plant, 

 reduced one-half, h^ a young peripheral filament bearing sporangium, X 5^* ^> ^^" 

 ture peripheral filament, X 5*^* ^> ^ peripheral filament and sporangium of Codium 

 iomenfosiirn (Huds. ) Stack. 



Fig. 2. Valonia ovalis (Lyngb. ) Ag. , X 2- Attached to a Aleiobesia. 



Fig. 3, rt, b and .r. Peripheral filaments bearing sporangia of Codium adhaerans 



(Cabe) Ag., X 50- . 



Fig. 4. Derbesia vauckeriaeforme (Harv.) J. Ag. 3, a filament, X 20. <r and ^, 

 early stage in the development of the sporangium, X 350- ^j ^ mature sporangium 

 showing zoospore, X 35^- 



The figures were drawn by Miss Emma Williams. 



