CONTRIBUTIONS TO WESTERN BOTANY NO. 16 



agency on the Santa Clara. Last year it had disappeared from this locality. 

 '1 his year it grows by the acre on the drifting sands on the hill above Toque'r- 

 ville, Utah, 25 miles east of St. George. I also found it thriving in Canon 

 Diablo, Arizona, near the meteoric crater. This extends its southern range 

 about 200 miles. The type u region, Arizona. It also 



grows at Moab, Utah. 



Dendromecon Piercei Jones is Hunnemannia fumariaefolia Sweet from 

 O.ixac.i, Mexico. To my mind the characters on which this genus depends 

 are not good, and it must be relegated to Dendromecon as D. fumariaefolia 



Astragalus Wingatanus Watson. RvrTerg has called attention to my 

 error in my monograph on Wi,nV n urm ; u i i i ^ Wm- ni 

 I he facts are that it is a straight error of mine, hut ! roughl about bv assum- 

 ing thai Wats , vou ] c { wr i te hi, 

 ./.•tin names correctly. The contex where he described this species will show 

 that he intended the name to perpetuate the name of Camp Wingate, New 

 Mexico, and not Captain Wingate. for whom the town was named. This 



!,,u however, a matter of much consequence. 



^ Further notes on Echinospermum subdecumbens Parry. On a recent 

 tap through northern Nevada, I saw from Wendover west to Wadsworth 

 many plants, and every one I saw had either white or dirty white flowers. 

 I think pale flowers are the rule and blue ones the exception. 



\ ergin river. In 1894 I tried in vain to get Coville to adopt the proper 

 spelling of this river and region. The name did not arise from the Latin 

 word "virgin" at all but from the name of a man, Vergin, who lived in the 



CORRECTION TO CONTRIBUTIONS NO. 15. 



In the hurry to get this off the press, a few serious errors crept in. On 

 page 94, beginning with "Lies on a mesa" to the end of the page should be 

 at the top of the page. 



On page 124 the last two lines of the paragraph on Dr man en i 

 folia should follow Callitriche. 



Under Callitriche Mexicana the two lines under Drymaria crassifolia 

 tire ° U i j£ Pkce and Sh0uld imm «liately precede D. Tepicana. 

 21 1927 t0 m ° Sa as P era * No. 22995. La Barrance. February 



In studying the Flora of Lower California and adjacent mainland one 

 '; .| rUlk lVilh l!u " aim-sing mixup of species. One would suppose that the 

 Bailey Willis theory of age and area would have some application in such a 

 wide country. Merrill has shown that the Philippines have a large number 

 of Mexican immigrants brought there in recent years by ships, doubtless. 

 Now we are continually finding species accredited to Oaxaca and Mexico 

 and Vera Cruz scattered throughout Sonora, Sinaloa and Tepic (Nayarit). 



