VOL. 5] Errors in Southern California Plants. 115 



apparently, without any authority. Dr. Coulter includes it in 

 the State flora on "149 Wright."" This specimen is in the 

 Gray herbarium, and, as the label shows, was collected in 1880 

 by Mr. W. G. Wright, in "Arizona." '" It is almost certain that 

 this species does not cross the Colorado River. 

 Opuntia rutila Ntttt.; Torr. & Gray, Fl. 1:555- 

 The only southern California report for this opuntia is based 

 on a collection by Bigelow, in 1853-4. It was made "west of the 

 great Colorado, near the Mojave Creek," 2 ' and became the type 

 of O. erinacea Engelm. & Bigel., a species subsequently re- 

 cognized as identical with Nuttall's earlier O. rutila.' 1 '' The 

 nearest collections since Bigelow' s time are those of Coville and 

 Funston, in the Panamint and White Mts., 25 but the species may 

 be expected with confidence from the Providence Mts., when 

 these come to be explored thoroughly. 



Opuntia Davisii Engelm. & Bigel. ; Engelm. Proc. Am. Acad. 



3:305. 



This is reported from California by Dr. Coulter on a specimen 

 by "Parish, of 1880. " M It is not in the Engelmann herbarium, 

 to which all my earlier collections of Cactaceae were sent, nor can 

 I find other trace of it. It must have been from the eastern part 

 of the Colorado Desert; unless a form of O. echinocarpa has been 

 mistaken for the present species. 



Opuntia Whipplei, Engelm. & Bigel.; Engelm. Proc. Am. 

 Acad. 3:307. 



Dr. Coulter reports this opuntia as collected by Agassiz, at 

 San Diego. iT It certainly does not grow near San Diego, and if 

 it grows anywhere in the state, which it is not known to do, it 

 probably would be on the eastern borders of the Colorado Desert. 



Opuntia acanthocarpa Engelm. & Bigel. Pac. R. Rep. 4.51- 



This species is added to the California Flora by Dr. Coulter^ 

 on 1493 Coville & Funston. But this number was collected at 



21 Coulter, J. M. Coutrib. U. S. Herb. 2:407. 



22 Fernald, M. L. i" lit 



23 Kngelmann & Bigelow, Pac. R. Rep. 4:44- 



24 Enaelmann, G. Simpson's Rep. 44*. 



25 Coville, P. V. Death Val. Rep. 114, &c. 



26 Coulter, J. M. 1. c. 445. 



27 Coulter. J. M. 1. c. 450. 



28 Coulter. J. M. 1. c. 454. 



