WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 385 
New Mexico: San Luis Mountains; White and Sacramento mountains. Damp 
slopes, in the Transition Zone. 
5. Ionoxalis monticola Small, N. Amer. Fl. 25: 42. 1907. 
Type tocatiry: Iron Creek, Grant County, New Mexico. Type collected by 
Metcalfe (no. 1220). 
Rance: Western Texas and southern New Mexico. 
New Mexico: Iron Creek; Burro Mountains; Organ Mountains. Shaded slopes, 
in the Transition Zone. 
6. Ionoxalis violacea (L.) Small, Fl. Southeast. U. S. 665. 1903. 
Oxalis violacea L. Sp. PI. 434. 1753. 
Type Locauity: ‘‘Habitat in Virginia, Canada.”’ 
RanGE: Maine and Florida to the Rocky Mountains. 
New Mexico: Chama; Santa Fe and Las Vegas mountains. Open slopes, in the 
Transition Zone. 
Our specimens are not typical J. violacea, but seem nearer to that species than to 
any other. 
2. XANTHOXALIS Small. YELLOW wooD-SORREL. 
Low herbs with horizontal rootstocks sometimes bearing fusiform tubers; stems erect 
or decumbent, 10 to 30 cm. long, more or less pubescent or glabrate; leaflets obcor- 
date; flowers rather small, in axillary few-flowered cymes; petals yellow; capsules 
columnar. 
KEY TO THE SPECIES, 
Rootstocks arising from an elongated tuberous root; leaves pubescent 
on both surfaces..............---- 222222 cece eee eee ee eee eee 1. X. albicans. 
Rootstocks with fibrous roots, or plant with a slender taproot; leaves 
glabrous or nearly 80............2..-...20220- 02 eee ee eee eee eee 2. X. stricta. 
1. Xanthoxalis albicans (H. B. K.) Small, N. Amer. FI. 25: 54. 1907. 
Oxalis albicans H. B. K. Nov. Gen. & Sp. 5: 244. 1821. 
Oxalis wrightii A. Gray, Pl. Wright. 1: 27. 1852. 
Xanthoralis wrightti Abrams, Bull. Torrey Club 34: 264. 1907. 
TypE Locatitry: “Crescit prope Moran Mexicanorum et Llactacunga Quitensium, 
alt. 1340 et 1480 hex.”’ 
RanGeE: Western Texas to Arizona, south into Mexico and South America. 
New Mexico: Middle Fork of the Gila; Ash Canyon. 
2. Xanthoxalis stricta (L.) Small, Fl. Southeast. U. S. 667. 1903. 
Oxalis stricta L. Sp. Pl. 435. 1753. 
Oxalis corniculata stricta Sav. in Lam. Encycl. 4: 683. 1797. 
Tyre Locauity: ‘“ Habitat in Virginia.”’ 
RanGeE: Nova Scotia and Wyoming to Florida and Mexico. 
New Mexico: Agua Fria; Las Vegas; Cloverdale; West Fork of the Gila; Chama; 
Sierra Grande. Open slopes and fields, in the Upper Sonoran and Transition zones. 
74. ZYGOPHYLLACEAE. Caltrop Family. 
Trailing herbs or spreading shrubs with compound, 2 to several-foliolate, abruptly 
pinnate leaves; leaflets small, entire, sometimes inequilateral; flowers perfect, yel- 
low or orange, mostly rather small, regular or nearly so; calyx of 5 sepals; petals of the 
52576°—15——25 
