WEED MIGRATION 725 



48. Scrophnlariaceae, Figwort Family 14 



49. Simarubaceae, Quassia Family 1 



50. Solanaceae, Nightshade Family 9 



51. Umkelli ferae, Parsley Family 12 



52. Urticaceae, Nettle Family 5 



53. Valerianaceae, Valerian Family 1 



54. Verbenaceae, Verbena Family 1 



55. Violaceae, Viola Family 1 



The weeds of the Pacific coast are somewhat different from those 

 of the Atlantic coast. Eugene Hilgard, in a series of interesting 

 articles in Garden and Forest, some years ago, S. B. Parish, J. 

 Burtt Davy and other California botanists, have contributed notes 

 on the introduction of these weeds of the coast. They enumerated 

 the more important weeds, among which mention may be made of 

 black mustard (Brassica nigra), catchfly (Silene gallica), storksbill 

 (Erodium cicutarium) , musk erodium (Erodium moschatum), 

 small-flowered mallow (Malva borealis), black medick (Medicago 

 lupulina), bur clover (M. denticidata) , white sweet clover (Meli- 

 lotus alba), and yellow sweet clover (M. officinalis), star thistle 

 (Centaurea cyanus), knapweed (C. solstitialis) , brown knapweed 

 (C. jacea), black knapweed (C. nigra), wild carrot (Daucus car- 

 ota), beet (Beta vidgaris), spinach (Spinacia oleracea), lady's 

 thistle (Silybum marianum) , cotton thistle (Onopordon acanthium), 

 dodder (Cuscuta epithymum). 



The writer recently noted the following weeds in the San Fran- 

 cisco Bay region, Oakland, and Sacramento, many of our eastern 

 weeds being common among them: Hedge mustard (Sisymbrium 

 officinale), Rapkanus sativus, Marrubium vulgare, dock (Bumex 

 crispus) , cheeses (Malva rotundifolia) , mallow (M. crispa) , bull 

 thistle (Cirsium lanceolatum) , sow thistle (Sonchus oleraceus), 

 cat's-ear (Hypochaeris radicata) , knotweed (Polygonum erectum), 

 black medick (Mcdicago lupulina), Brassica campestris, lamb's 

 quarters (Chenopodium album), chickweed (Stellaria media) , Boa 

 annua, Alfilaria (Erodium cicutaria) , pineapple weed (Matricaria 

 suaveolens), common groundsel (Senecio vidgaris), burdock (Arc- 

 tium lappa), Silybum marianum, Centaurea melitensis, prickly let- 

 tuce (Lactuca scariola), mustard (Brassica campestris), also such 

 native weeds as Amsinckia and Escholtzia. 



