WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 399 
3. Chamaesyce nutans (Lag.) Small, Fl. Southeast. U. 8. 712. 1903. 
Euphorbia nutans Lag. Gen. & Sp. Nov. 17. 1816. 
Euphorbia preslit Guss. Fl. Sic. Prodr. 539. 1827. 
Type Locauity: ‘‘Habitat in N. [ova] H. [ispania].’’ 
RanGE: Eastern North America, west to the Rocky Mountains, south into Mexico. 
New Mexico: Mangas Springs; Organ Mountains; Lower Plaza; Roswell. Damp 
fields and canyons, in the Upper Sonoran Zone. 
4. Chamaesyce serrula (Engelm.) Woot. & Standl. Contr. U. 8. Nat. Herb. 16: 
144. 1913. 
Euphorbia serrula Engelm. in Torr. U. 8. & Mex. Bound. Bot. 188. 1859. 
TYPE Loca.ity: ‘‘Western Texas and New*Mexico.”’ 
Rance: Western Texas to Arizona and adjacent Mexico. 
New Mexico: Farmington; Tesuque; mesa west of Organ Mountains; White Sands; 
south of Roswell; Carlsbad. Dry plains and hills, in the Lower and Upper Sonoran 
zones. 
5. Chamaesyce serpyllifolia (Pers.) Small, Fl. Southeast. U. 8. 712. 1903 
Euphorbia serpyllifolia Pers. Syn. Pl. 2: 14. 1807. 
Type Loca.ity: ‘In Amer. [ica] calidiore.’’ 
RANGE: Wisconsin to California, south to Mexico. ; 
New Mexico: Common throughout the State except along the eastern border. 
Plains and low hills, Lower Sonoran to Transition Zone. 
6. Chamaesyce neomexicana (Greene) Standley, Contr. U. 8. Nat. Herb. 18: 199. 
1910. 
Euphorbia neomexicana Greene, Bull. Calif. Acad. 2: 55. 1886. 
Type LocaLity: Plains of the upper Gila in western New Mexico. 
Rance: Southwestern New Mexico and adjacent Arizona. 
New Mexico: Hillsboro; Sycamore Creek; Organ Mountains; Gray; south of Ros- 
well. Upper Sonoran Zone. 
7. Chamaesyce lata (Engelm.) Small, Fl. Southeast. U. 8. 710. 1903. 
Euphorbia lata Engelm. in Torr. U. 8. & Mex. Bound. Bot. 188. 1859. 
TYPE LocALITy: Western Texas. 
Rance: Kansas to Texas and New Mexico. 
New Mexico: Organ Mountains; Roswell; Nara Visa; Carrizozo; south of the White 
Sands; Guadalupe Mountains; Buchanan; Redlands; Carlsbad. Plains, Lower and 
Upper Sonoran zones. 
8. Chamaesyce albomarginata (Torr. & Gray) Small, Fl. Southeast. U. S. 710. 
1903. 
Euphorbia albomarginata Torr. & Gray, U.S. Rep. Expl. Miss. Pacif. 27: 174. 1855. 
Tyre Loca.ity: ‘‘Head-waters of the Colorado.” 
Ran@eE: California to Texas and southward. 
New Mexico: Fort Wingate; Socorro; Mangas Springs; Kingston; Deming; Organ 
Mountains; mesa near Las Cruces; Tucumcari; Gray; south of Roswell; Tularosa; 
Carrizalillo Mountains; Zuni; Water Canyon. Dry plains and hills, in the Lower 
and Upper Sonoran zones. 
9. Chamaesyce fendleri (Torr. & Gray) Small, Fl. Southeast. U. 8. 710. 1903. 
Euphorbia fendleri Torr. & Gray, U. 8. Rep. Expl. Miss. Pacif. 27: 175. 1855. 
Type Locatity: New Mexico. Type collected by Fendler (no. 800). 
Rance: Wyoming and Nebraska to Texas and Arizona. 
New Mexico: Nearly throughout the State. Dry hills and plains, in the Lower 
and Upper Sonoran zones. 
