228 CALIFORNIA ACADEMY OF SCIENCES. 



*Polypogon Monspeliensis, Desf . Common about springs. 



Avena fatua, Linn. Very little seen; apparently not es- 

 tablished. 



Melica imperfecta, Trin. Only one tuft, in a place inac- 

 cessible to goats. 



tSTENOCHLOE CALIFORNICA, Nutt. 



Bromus maximus, Desf. Abundant; not even goats are 

 fond of it. 



*Hordeum murinum, Linn. A grass which goats will prob- 

 ably not prevent from overspreading all fertile parts of the 

 island. Only a few tufts were seen, near the cabins on the 

 plateau; but the seed is there, and it will hardly fail to 

 become abundant. 



Festuca microstachys, Nutt. 

 Polypodium Californicum, Kaulf. 



fPoLYPODlUM Scouleri, Hook. Dr. Palmer's gathering of 

 it from "the trunk of a single oak" may have proved the 

 extermination of the species on this island. 



IGymnogramme triangularis, Kaulf. 

 Nothol^ena Newbereyi, Eaton. 



fPELL^A ORNITHOPUS, Hook. 



fAspiDiUM munitdm, Kaulf. 



