Toumeya 1 species is recognized. Distribution: Central Arizona, New Mexico, N Texas. Colorado Desert. Toumeya papyracantha (Engelmann) Britton & Rose 1922 Gramma Grass Cactus Synonymy Toumeya papyracantha (Engelmann) Britton & Rose Cactaceae, 3:91, 1922. Basionym: Mammillaria papyracantha Engelmann, Mem. Amer. Acad. II, 4:49, 1849. Echinocactus papyracanthus Engelmann, Trans. Acad. Sci. St. Louis, 2:198, 1863. Toumeya papyracantha (Britton & Rose) Marshall, Saguaroland Bulletin XII, 114, 1956, later homonym. Pediocactus papyracanthus (Engelmann) L. Benson Cact. & Succt. J. (US) 34:61, 1962. Sclerocactus papyracanthus (Engelmann) Taylor, Bradleya, New and unfamiliar names of Cactaceae to be used in the European Garden Flora, 5:91 f.1987. Type: "In a valley between the lower hills near Santa Fe in loose sandy red soil. Fendler, May 15.1847" MO. Other representative material studied: Arizona: fh 085, Snowflake, 1,700 m, fh 085.4, Show Low area, 1,800 m, fh 086, Holbrook, fh 087, Little Colorado River, 1,600 m, fh 087.1, White Lake, 1,675 m, fh 087.2, Washboard Wash, 1,600 m. New Mexico: fh 080, Bernalillo Co., fh 080.1, Albuquerque, 1,400 m, fh 081, Santa Fe, 2,000 m, fh 082, Los Alamos Co., 2,000 m, fh 083, Belen, 1,400 m, fh 084, San Ysidro, 1,700 m, fh 084.1, Bingham. Texas: fh 0800, Dry Salt Lake, 1,250 m, fh 0801, Hudspeth Co.

fh 0800, Texas fh 085.4, Arizona fh 080, New Mexico AM 896.6, Texas