WOOTOiST AND STANDLEY FLORA OF NEW MEXICO. 403 



New Mexico: Santa Fe; Pecos; Zuni Reservation; Sandia Mountains; Socorro; 

 Mangas Springs; Gila; Nara Visa; Malaga; Tuciuncari; south of Melrose. Plains and 

 low hills, in the Upper Sonoran Zone. 



A common weed in many parts of the State, especially abundant in draws or flats 

 on overstocked ranges. 



2. Croton luteovirens Woot. & Standi. Contr. U. S. Nat. Herb. 16: 145. 1913. 

 Type locality: On the Rio Gila, New Mexico. Type collected by Wooton, 



August 15, 1902. 



Range: Known oidy from the type locality. 



The plant is very abundant in this region, growing with the related C. tezensis. 

 Patches of the two are distinguishable at a distance because of their different color. 



3. Croton fruticulosus Engelm. in Torr. U. S. & Mex. Bound. Bot. 194. 1859. 

 Type locality: "Mountain sides and rocky ravines, western Texas. - ' 

 Range: Western Texas and southern New Mexico to Mexico. 



New Mexico: Organ Mountains. Rocky hills and canyons, in the Upper Sonoran 

 Zone. 

 A low shrub, 1 meter high or less. 



4. Croton corymbulosus Engelm. in Wheeler, Rep. U. S. Surv. 100th Merid. 5: 



242. 1878. 



Type locality: Camp Bowie, Arizona. 



Range: Western Texas to Arizona, and southward. 



New Mexico: Silver City Draw; Organ Mountains; Tortugas Mountain; near 

 White Water; Tucumcari; Jarilla; between Fierro and Hanover; Pecoa Valley. Sandy 

 mesas and barren rocky hills, in the Lower Sonoran Zone. 



5. Croton eremophilus Woot. & Standi. Contr. U. S. Nat. Herb. 16: 141. 1913. 

 Type locality: Dog Spring in the Dog Mountains, New Mexico. Type collected 



by E. A. Mearns (no. 2336). 



Range: Southwestern New Mexico. 



New Mexico: Dog Spring; Parkers Well. Dry hills and plains, in the Lower 

 Sonoran Zone. 



6. Croton tenuis S. Wats. Proc Amer. Acad. 14: 297. 1879. 



Croton californicus tenuis Ferguson, Rep. Mo. Bot. Gard. 12: 64. 1901. 

 Type locality: Southern California. 



Range: Southwestern New Mexico to California and adjacent Mexico 

 New Mexico: Near White Water (Mearns 2269). 



7. Croton neoniexicanus Muell. Arg. Linnaea 34: 141. 1865. 

 Type locality: Western Texas. 



Range: Western Texas, southern New Mexico, and adjacent Mexi' o. 

 New Mexico: Grant County; mesa west of Organ Mountains; Guadalupe Moun- 

 tains. Mesas and low, dry hills, in the Lower Sonoran Zone. 



12. ACALYPHA L. Three-seeded mercury. 



Annual or perennial herbs with simple petiolate leaves and monoecious Sowers in 

 axillary or terminal spikes; leaves thin, punctate, serrate; staminate flowers with I 

 Bepals and s to hi united stamens; pistillate flowers subtended by Eoliaceous l>racts, 

 the sepals :'. \<> :>, the stigmas fringed; fruit a 3-celled 3-seeded capsule. 



KEY TO TKK SI! I II - 



Annual; stigmas greenish, inconspicuous; inflorescence mostly 



axillary II 



Pereni ial bigmas bright red, showy ; inflorescence terminal -'. A. Undheimt 



