The genus Astragalus (Leguminosae: Papilionoideae: Galegeae) in Mexico Author Castillón, Eduardo Estrada 0000-0003-1061-9862 Universidad Autónoma de Nuevo León, Facultad de Ciencias Forestales, A. P. 41, 67700, Linares, Nuevo León, Mexico aeduardoestradac@prodigy.net.mx Author Quintanilla, José Ángel Villarreal 0000-0001-9672-8693 Universidad Autónoma Agraria Antonio Narro, Departamento de Botánica, Saltillo, Coahuila, Mexico javillarreal00@yahoo.com Author Delgado-Salinas, Alfonso 0000-0002-9322-9968 Universidad Nacional Autónoma de México, Instituto de Biología, 21068 adelgado@ib.unam.mx Author Rebman, Jon P. 0000-0002-4150-7356 San Diego Natural History Museum, P. O. Box 121390, San Diego, California, 92112 jrebman@sdnhm.org text Phytotaxa 2023 2023-03-07 586 1 1921 1935 http://dx.doi.org/10.11646/phytotaxa.586.1.1 journal article 10.11646/phytotaxa.586.1.1 1179-3163 7703999 48.3. Astragalus insularis Kellog var quentinus M. E. Jones, Contr. W. Bot. 8: 6. 1898 Type:— MEXICO , Baja California , San Quintin , 12 April 1886 , Orcutt 1327 ( holotype : BM000931689 digital image!: isotype : NY00005805 !) . This variety has a localized geographical distribution. Distribution:— Endemic to Baja California , it is distributed from Vicente Guerrero and San Quintín ( 30°39’N115°32’W ) south to San Carlos, Santa Catarina and Canoas ( 29°28’N115°11’W ) ( Fig. 14 ). Habitats:— Silty soils with rocks; canyons along washes; dunes; slopes near roads; along beds of dry streams; slopes, next to intermittent streams, with Fouquieria , Pachycormus, Machaerocereus, Opuntia, Atriplex , Larrea, Trixis, Lophocereus , Yucca, Salvia, Solanum ; coastal scrub; 180– 210 m . Specimens examined:— BAJA CALIFORNIA : 4 April 1998 , Ca 0.6 millas S del camino a Bahía de los Ángeles y aprox. 17 millas al este de El Crucero y su cruce con la autopista 1, J. Rebman 5028 (BCMEX, SD ); 9 April 1931 , Norte Socoro canyon from sign post to beach, I. L. Wiggins 5217 (CAS); 29 March 1984 , Ammonite Canyon at its junction with Arroyo Santa Catarina, 5.4 miles E of Santa Catarina Landing on the road to Rancho Santa C, A. C. Sanders 5555, E. Rodriguez, J. West et al. (NY); 10 April 1931 , Rosario Wash, I. L. Wiggins 5244 (CAS, NY); I-1889 , San Quentin Bay, E. Palmer 719 (CAS, NY); 24 February1938 , Norte Camp 2 mi. S. of Mesquital, I. L. Wiggins 7767 (CAS); 10 January 1976 , Highway 1 2 km south of San Martin , D. Johnson 149 (CAS); 22 April 1886 , Plains near San Quentin bay, C. R. Orcutt 1327 (NY); 23 March 1970 , Arroyo el Cuervito, cerca de la boca, R. Moran 17088 ( SD ).