VOL. 5] Errors in Southern California Plants. 119 



southern Mexico and Arizona to southern California. 6". velutina 

 Dur. & Hilg., which is usually reduced to a synonym of 5. 

 Mexicana, extends from Pose Creek, in the southern part of the 

 San Joaquin Valley, as far north as, perhaps, Plumas County.'-' 

 I do not, however, find any evidence of its existence between 

 the Tehachipi Pass and the south-eastern boundary; a remark- 

 able hiatus if the above identification is well founded; nor is the 

 genuine 5. Mexicana known to reach California. 



Megarrhiza Marah Watson, Proc. Am. Acad. 11: 138. 



This has been reported from Santa Catalina Island as collected 

 by Baker" and by Lyon.* 4 But Baker's specimen, in the Gray 

 herbarium, is a mere sterile scrap, and Lyon's is not in existence. 

 Probably their plants were Echinocystis macrocarpa Greene. 



Calycoseris Parryi Gray, in Torr. Bot. Mex. Bonnd. 106. 



The type-locality of this species was given as "Mountains east 

 of Monterey." It is, however, a strictly desert plant, and its 

 range, as correctly stated in the Synoptical Flora, is from the 

 Colorado Desert to Utah. 



Erigeron corywbosus Nutt. Trans. Am. Phil. Soc. 7: 308. 



This is reported as collected by Dr. Cooper on "the eastern 

 slope of Providence Mountain." 45 The specimen is said to be in- 

 complete and it is hardly possible that this northern plant should 

 occur in that desert range. 



Dayia carnosa Torr. & Gray, Fl. 2: 394. 



Nuttall is said to have collected this plant "on the sands of 

 the sea-beach, at San Diego." Either it has become extinct at 

 that place, or there is a mistake as to Nuttall's locality. In 

 recent times botanists have found it on sea-beaches from Mann 

 County as far south only as Monterey. 4 " 



Ch^Enactis heterocarpha, Gray, PI. Fendl. 98. 



The Synoptical Flora gives this plant a range from Lake to 

 San Bernardino County. The southernmost specimen in the 



41 Gray, A. Syn. Fl. I. 259. 



42 Greene, E. I.. PI. Franc. 342. 



43 lirewer & Watson, Bot. Cal. 1: 241. 



44 I,von, W S. Bot. Gaz. 1 1 : 333. 



45 Gray, A. in Brewer & Watson, Bot Cal. 1 . 32 > 



46 Greene, K. T,. Fl. Franc. ^- 



