No. 3. The Marine Algae of Santa Barbara County. 



19 



Phyllitis fascia, Kutz. 

 PIKEA (Named for Captain Pike, of New York), IV. M. 



Pikea californica, Harvey, 

 PLOCAMIUM (Braided hair), IV. P. 



Plocamium coccineum, Lyngb. 



Plocamium violaceum, Farlow. 

 POLYSIPHONIA (Many tubes), IV. S. 



Polysiphonia Baileyi, Ag. 

 (?) Polysiphonia g-emmifera, 



Polysiphonia parasitica, Grev. 



Polysiphonia parasitica, var. dendroides, Ag. 



Polysiphonia pennata, Ag. 



Polysiphonia senticulosa, Harvey. 



Polysiphonia urceolata, Grev, 



Polysiphonia urceolata, var. patens. 



Polysiphonia verticillata, Harvey. 



Polysiphonia Woodii, Harvey. 

 PORPHYRA (Purple weed), IV. J. 



Porphyra vulgaris, Ag. (P. laciniata, Ag., and P. lin- 

 earis, Grev.). 

 PRIONITIS (A little saw), IV. N. 



Prionitis decipiens. 



Prionitis lanceolata, Harvey; and variety. 

 PTILOTA (Pinnated, or plumed), IV. M. 



Ptilota densa. (?) 



Ptilota hypnoides, Harvey. 

 RHABDONIA (Rod-like), IV. P. 



Rhabdonia Coulteri, Harvey. 

 RHODOMELA (Red-black), IV. S. 



Rhodomela floccosa, Ag. 



Rhodomela larix, Ag. 

 RHODYMENIA (Red membrane), IV. P. 



Rhodymonia cerallina, Grev. 



Rhodymenia corallina, form linearis. 



Rhodymenia palmata, Grev. (?) 



Rhodymenia palmetta, Grev. 

 RICARDIA, IV. N. 



Ricardia Montag-nei, Derbes and Sol. 



