49 



AkAJJiS MAXIMA Creene, Pittonia, 4: 192. 1900. 



Streptdnthiis drcuatus Nntt; T. & G. Fl. N. A. 1: ']']. 

 1838. 



Arabis arciiata A. Gray, Proc. Am. Acad. 6: 187. 1863; 

 not Shuttleworth. 



No. 7772, collected April 26, about a mile inside of Kern 

 canyon, Kern county, in moist sandy soil on the edge of the 

 river, evidently brought down by the stream from higher eleva- 

 tions. Originally found by Nuttall on "shelving rocks on high 

 hills near St. Barbara, Upper California." 



Arabis CAMPYLOLOBA Greene, Pittonia, 4: 192. 1900. 



No. 8083, collected June 22, near the railroad a short dis- 

 tance south of Weed, Siskiyou county, not many miles from 

 Yreka, the type locality. The pods, however, are less strongly 

 arcuate than those of A. maxima^ a point at variance with the 

 original, but it has the small pale flowers of A. campyloloba. 



Chkiranthus angustatus Greene, Pittonia, 3: 132. 1896. 



No. 7713^ collected April 18, at Girard station in the Te- 

 hachapi mountains, Kern county. It is abundant on the hills 

 from Bealville almost to Tehachapi, the flowers varying from 

 pale yellow to orange. These specimens may possibly not be- 

 long to this species, but are nearer it than any of the others so 

 far described. The type of C. angustatus came from "sandy 

 banks of the San Joaquin River," a rather indefinite citation, 

 but at most a region considerably removed from the Tehachapi 

 mountains. 



Alyssum alyssoides (L.) Gouan, Hort. Monsp. 321. 1762. 

 Clypeola alyssoides L. Sp. PI. 652. 1753- 

 Alyssum calycinum L. Sp. PI. Ed. 2, 908. 1763. 

 No. 8054, collected June 17, in sandy soil between Sisson 

 and Barnard station, Siskiyou county. The flowers are yellow 

 at first, changing to white with age. Orig^inally found "in Aus- 

 tria, Gallia, Germania.'' 



