FLOWERING PLANTS AND FERNS OF ARIZONA 509 



2. Oxalis stricta L., Sp. PL 435. 1753. 



Xanthoxalis stricta Small, Fl. Southeast. U. S. 667. 1903. 



Coconino, Yavapai, Graham, Santa Cruz, and Pima Counties, 

 3.000 to 6,000 feet, usually along streams, April to June. Throughout 

 much of North America. 



3. Oxalis albicans H. B. K., Nov. Gen. et Sp. 5: 244. 1822. 



Oxalis wrightii A. Gray. PL Wright. 1: 27. 1852. 

 Xanthoxalis wrightii Abrams, Torrev Bot. Club Bui. 34: 264. 

 1907. 



Apache County to Coconino County, south to Cochise, Santa 

 Cruz, and Pima Coimties, 2,500 to 5,500 feet, common, preferring 

 moist ground and partial shade, March to September. Western Texas 

 to Arizona and Mexico. 



4. Oxalis repens Thunb., Diss. Oxal. 16. 1781. 



Oxalis co/niculata of authors, in part. Xot L. 



Tempe, Maricopa County, common in lawns (McLellan and Stitt 

 1360). Extensively naturalized in the United States, from the Old 

 World. 



5. Oxalis grayi (Rose) Knuth, Notizbl. Bot. Gart. u. Mus. Berlin 



7: 317. 1919. 



Ionoxalis grayi Rose, Contrib. U. S. Natl. Herbarium 10: 112. 

 1906. 



Apache, Coconino, Yavapai (and Santa Cruz?) Counties. 5,000 to 

 9,500 feet, mostly in pine woods, July and August. New Mexico, 

 Arizona, and northern Mexico. 



A form occurring in the Patagonia Mountains (Peebles et al. 5599) 

 is referred here doubtfully. It has exceptionally large leaves, the 

 sepals bear a light-brown apical gland in addition to the ordinary 

 callosities, and the filaments are appendaged on the back. 



6. Oxalis metcalfei (Small) Knuth, Notizbl. Bot. Gart. u. Mus. 



Berlin 7: 314. 1919. 



Ionoxalis metcalfei Small, North Amer. Fl. 25: 39. 1907. 



Greenlee County to Yavapai County, south to Cochise and Pima 

 Counties, 5,500 to 9,000 feet, common in rich soil of coniferous forests, 

 July to September. New Mexico and Arizona. 



Very close to 0. violacea L.. but the leaflets are more deeply ob- 

 cordate and the bulb scales less distinctly and prominently 3-nerved 

 than in most specimens of 0. violacea from the eastern United States. 



7. Oxalis amplifolia (Trelease) Knuth, Notizbl. Bot. Gart. u. Mus. 



Berlin 7: 314. 1919. 



Oxalis divergens Benth. var. amplifolia Trelease in A. Gray, 



Syn. FL l 1 : 368. 1897. 

 Ionoxalis amplifolia Rose, Contrib. U. S. Natl. Herbarium 



10: 110. 1906. 



Cochise, Santa Cruz, and Pima Coimties. 3,700 to 5,200 feet, rick 

 soil in shade, August. Western Texas to southern Arizona. 



