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’N – 115°32’W) south to San Carlos, Santa Catarina and Canoas (29°28’N – 115°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).