V' 



v-\ 



... :%,^ 



a. Monolepis chenopodioid.es, February, 1907. b. Orthocarpus purpurascens 

 parasitic on Astragalus sp. c. Orthocarpus purpurascens on Lupinus sp., March, 

 1907. d. Parietaria debilis, mature plants from favorable and unfavorable moisture 

 conditions, e. Phacelia tanacetifolia, March, 1907. f. Plantago fastigiata, March, 

 1906. 



