VOL. IV.] Flora of Bonldin I stand. 217 



Popubis Fre^nonti Watson. Not common. 



Asparagus officinalis ly. A considerable part of the acreage 

 of Bouldin Island is devoted to the cultivation of this plant. It 

 is becoming abundantly naturalized, as might be expected from 

 the profusion of seed. 



Typha la ti folia L. 

 Lemna trisulca L,. 

 Lemna minor L,. 

 * Speirodela polyrrhiza ( L,) . 

 Alistna Plantago ly. 



Sagittaria sagithefolia L. var. , ^. Sinensis Sims. The Chinese 

 plant this for its edible tubers, and it has escaped and is thor- 

 oughly at home in nearly all the marshy lands of the Sacramento 

 and San Joaquin. It ripens a very large number of seeds, which 

 are widely disseminated by the waters. 



/uncus effustis L. 

 Juncus xiphoides Me5'-er. 

 ■ Cyperus erythrorhizos Muhl. 

 Scirpus lacustris I,. 

 Scirpus Tatora Kunth. 

 Scirpus Olneyi Gray. 

 E,leocharis palustris R. Br. 

 Carex. Not determined. 



Panicum Crn.<-gaUi'L(. The most common grass. 

 Setaria glauca Beau v. 

 Phleum pratense L. 

 Phalaris Canariensis ly, 

 Polypogon Monspeliensis Desf. 

 Agrostis alba L- 

 Agrostis scabra Willd. 

 Agrostis verticillata Vill. 

 Holcus lanatus L,. 

 Phragmites com >n ion's Trin. 



