210 CALIFORNIA ACADEMY OF SCIENCES. 



PoTAMOGETON PECTiNATus L. — Sail Raimuiido. 



POTAMOGETON, sp. — Comoiiclu. 



PoTAMOGETON, sp. — Sail Gregorio. 



RuppiA MARiTiMA L. — Sail Gregorio. 



Zannichellia palustris L. — Comoiidu. 



Naias major All. — San Gregorio. 



Cyperus, sp. — Comondu. 



Cyperus aristatus Rottb. — Comondu. 



Cyperus l^vigatus L. — Calamujuet. 



Cyperus speciosa Valil. ? — Comondu. 



Cyperus, sp. Too old. — San Raimuodo. 



Eleocharis palustris E. Br. — San Gregorio. 



Eleocharis rostellata Torr. — Santa Maria. 



Eleocharis arenicola Torr. ? — San Ignacio. 



SciRPUS lacustris L. — El Rosario. 



SciRPUS MARiTiMUS L, — Sail Gregorio, Las Huevitas. 



SciRPOS Olneyi Gray. — Comondu. 



SciRPUS RiPARius Spreng. — El Rosario. 



SciRPUS PUNGENS Valil. ? — San Gregorio. 



Carex, sp. — Santa Maria. 



FuiRENA, sp. — Comondu. Apparently distinct from all 

 the described forms. 



The following grasses were determined by the well-known 

 agrostologist, Dr. George Vasey, of the Agricultural Depart- 

 ment, Washington, D. C: 



Paspalum distichum L. — Comondu. 



Panicum leucanthum Torr. — Mae-dalena Island. 



