386 BOTANICAL GAZETTE [November 



At the outer boundary of the zone various introduced weeds now 



in flower and fruit. 



Systematic list 



The species of the depressions are recorded in the following 

 list. Reference letters have the following significance: C, charac- 

 teristic; F, frequent; O, occasional.^ 



Alismaceae 

 Damasonium californicum (F. and M.) Greene, O 



Poaceae 

 Alopecurus californicus Vasey, F 

 Alopecurus geniculatus Linn., F 

 Deschampsia danthonioides Munro, C 

 Phalaris Lemmoni Vasey, 

 Cyperaceae 

 Eleocharis acicularis R. Br., 



Juncaceae 

 Juncus tenuis Willd., O 



Limnanthaceae 

 Floerkea Douglasii BailL, C 



Lythraceae 

 Lythrum hyssopifolium Linn., O 



Onagraceae 

 Boisduvallia stricta (Gray) Greene, 



Apiaceae 

 Eryngium Vaseyi C. and R., C 



Polemoniaceae 

 Gilia intertexta Steud., O 

 Gilia leucocephala Benth., C 



Boraginaceae 

 Allocarya californiea (F. and M.) Greene, C 

 Allocarya stipata Greene, 

 .\llocarya trachycarpa (Gray) Greene, F 



Lamiaceae 

 Pogogyne ziziphoroides Benth., 



Scrophulariaceae 

 Mimulus angustatus Gray, F 

 Mimulus tricolor Hartw., C 



5 The writer is under obligation to Prof essor Harvey M. Hall for the privileges 

 of the University of California Herbarium, and to both Professor Hall and Miss 

 Walker in naming for him a considerable collection of Calif omian plants. 



