Y 



212 CALIFORNIA ACADEMY OF SCIENCES. 



Erigeron sanctarum, Watson, n. sp. in litt. 

 Santa Inez Mountains, near Santa Barbara and Santa 

 Rosa Island. 



Aster foliaceus, Lindl. 



Baccharis pilularis, DC. 



Baccharis Douglasii, DC. 



Stylocline gnaphalioides, Nutt. 



Felagg Californica, Nutt. 



Gnaphalium purpureum, L. 



Gnaphalium decurrens, Ives, var. Californicum, Gray. 



Gnaphalium Sprengelii, Hook. & Arn. 



Leptosyne gigantea, Kellogg. 



Madia sativa, Molina. 



Hemizonia fasciculata, Torr. & Gray. 



Hemizonia paniculata, Gray. 



Layia platyglossa, Gray. 



Venegasia carpesioides, DC. 



B.aERiA gracilis, Gray. 



B^RiA Palmeri, var. Clementina, Gray. 



The specimens from Santa Rosa Island are more fleshy- 

 thickened and the bracts more strongly carinate than those 

 from Santa Cruz. Pappus of the disk flowers generally of 

 four, sometimes of as many as seven paleae; of the ray flow- 

 ers mostly two, often one and sometimes none, similar to 

 the pappus of B. gracilis from the Islands and Santa Bar- 

 bara. 



