VOL. I.] Naturalized Plants. 59 



Another composite, indigenous in the Sacramento valley, I have 

 seen in the south at a single station, and that such as to render it 

 very probable that it was there an introduced species. This is Hem- 

 izo7iia Filchii, and it was growing quite abundantly in a large wheat 

 field on the Mojave river. As it is not known to occur elsewhere so 

 far from its range it is reasonable to suppose that it owed its presence 

 at this place to imperfecdy cleaned seed wheat brought from the 

 region in which it is native. I have not revisited the place (Bur- 

 cham's Ranch) where it was observed, and am unable to give its 

 subsequent history, but I have little doubt that it still continues to 



propagate itself. 



The showy Verbesina e?iceHoides possibly may be indigenous in 

 the valley of the Colorado, as it is in Arizona and eastward, but at 

 El Monte in Los Angeles county it is an abundant roadside weed 

 and certainly not native. In the city of Los Angeles Melampodiiim 

 perfoliatum is plentiful in damp waste grounds and along ditches. 

 It is a Mexican'species, and the extent to which it has established 

 itself indicates that it was an early introduction. Another Mexican 

 plant w^hich has been long naturalized is Bidens pilosa, also an in- 

 habitant of ditch sides, and not rare in the southern counties. 



Mayweed, Anthemis cotula, which here justifies its popular name 

 by early flowering, is now a common roadside weed in the San Ber- 

 nardino valley, although a dozen years ago it was comparatively 

 scarce. 



Sebastodes goodei. — This species was recently described by us 

 in the Proceedings of the California Academy of Sciences. All of 

 our specimens were procured at San Diego. It is of considerable 

 interest, therefore, to find that this species is found as far north as 

 San Francisco, where two specimens were procured on April 17, 

 1890. They are now in the collections of the California Academy of 

 Sciences, and numbered 11 30. Carl H. Eigenmann. 



Mn C. G. Pringle's set for 1889 of Plants Mexicanae, numbering 

 335 species (Nos. 1990-2600), is of the usual excellence of those 

 issued by this best of American collectors. They have been named 

 by Dr. Sereno Watson, who describes as new, two genera and one- 

 fifth of the species. 



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