Astragalus daleae The genus Astragalus (Leguminosae: Papilionoideae: Galegeae) in Mexico Castillón, Eduardo Estrada Quintanilla, José Ángel Villarreal Delgado-Salinas, Alfonso Rebman, Jon P. Phytotaxa 2023 2023-03-07 586 1 1921 1935 HXBZ Greene, Pittonia Greene, Pittonia [178,573,770,797] Magnoliopsida Fabaceae Astragalus Plantae Fabales 33 Tracheophyta species daleae   Type:— Mexico, Durango, Sierra Madre, west of Durango,  September and October 1881,  A. Forrers.n.( Holotype NDG 26906digital image!;  isotype: GH 00059410digital image!)   Perennial. Stemsup to 47 cmlong, strigose, the trichomes up to 0.5 mmlong, appressed. Stipules 2–10 mmlong, ovate to lanceolate. Leaves 3–7.6 cmlong, leaflets 15–31, 2–10 mmlong, oblong, elliptic, elliptic-obovate to obovate. Peduncles 4–11 cmlong, straight or barely curved; the racemes 3–8.3 cmlong, dense, flowers 20–68 pendulous; bracts 2–7 mmlong, elliptic, boat shaped, ascendant when young, deflexed with age, strigose to glabrate abaxially. Flowerspale-yellow*, white-greenish to ochroleucous; the calyx 2.6–3.6 × 2.5 mm, campanulate, the tube 1.9–2.5 mmlong, the teeth 0.8–1.1 mmlong, wide-triangular to subulate; the banner 5.6–6.5 × 4.4–5 mm, ovate to suborbicular; the wings 6–6.2 mm× 1.2–1.3 mm, the claw 2.8–2.9 mmlong, the blade 3–3.2 mmlong, oblong, the keel 4.7–5.4 × 2–2.3 mm, the claw 2.8–2.9 mmlong, the blade 2.8–2.9 mmlong. Podpersistent or tardily separating from receptacle, 7–12 × 2 mm, deflexed, sessile, triquetrous, linear, lancoelate to oblong, straight to curved, basally rounded, the apex ending in a cuspidate contracted beak, compressed, dorsally sulcate, laterally mildly convex but abruptly rounded, the valves thin, somewhat papery, turning harder with age, green when young, turning black with age, strigose, the trichomes mostly white with some scattered black ones mixed, septum complete, thence bilocular; ovules 9–11; seeds 1.2–1.7 mmlong, ligh brown, olive-brown, smooth.   Distribution:—Mountains of northwestern Mexico, Chihuahua, (among Yepachi, Tomochi and Uruachi) and Durango(around Tepehuanes, Canelas, Topia and El Salto) ( Fig. 5).   Habitat:—Sandy soils, near river; steep cliffs; with riparian vegetation; cold coniferous forests; open and moist slopes; cool conifer forest; pine-oak forest; associations with pine-juniper-oak-madrone; 2000–2620 m.   Comments:—Morphologically similar to  A. vaccarum, but this one, having plane bracts. * D. E. Breedlove 63018(NY).   Specimens examined:—   CHIHUAHUA:  12 September 1987, Parque Nacional de la Cascada de Basaseachic, along benches of Rio Bassasechicabout  100 mabove falls,  R. W. Spellenberg9288, D. Jewell( NY);   DURANGO:  12 August 1961, Puerto Buenos Aires, 30 milessouthwest of El Salto,  U. T. Waterfall16211( NY);   12 August 1956,  Durango, Mexico, Mountainside near steep cliffs, 33 milessouthwest of El Salto,  U. T. Waterfall12715( CAS, TEX, US);   24 August 1986, Just S of Puerto Buenas Airesalong Mexican Hwy40 between Mazatlanand Durango,  D. E. Breedlove63018, B. Anderson( NY);   6 October 1965, Crest of Sierra Madrenear Pto. Buenos Aires, 34 mi.w. of El Salto on Mazatlanhighway,  H. D. Ripley1406, R. C. Barneby( NY);   18 October 1965, Sierra Madre 20 milesw. of El Salto, H. D. D. Ripley14187 ( NY);   18 August 1982, 111 road mi. NW of Santiago Papasquiaro, on road to Topia,  5 mi.W of Cienaga Nuestra Señora,  R. W. Spellenberg6715( MEXU);   6 October 1965, Crest of Sierra Madrenear Pto. Buenos Aires, 34 mi.w. of El Salto on Mazatlanhighway,  H. D. Ripley14006( NY).   SINALOA:  September 1919, Panuco, municipio de Concordia, M. P. Dehesa 1585(CalBG: RSA, Image, Catalog number: RSA0006892). 5244030533 1881-09 1881-10-31 1881-09 NDG Mexico Sierra Madre Type 33 26906 1 Durango holotype 5244031871 [269,635,882,904] 1881-09 1881-10-31 1881-09 GH Mexico Sierra Madre Type 33 00059410 1 Durango isotype 5244032608 1987-09-12 NY 100 Rio Bassasechic Parque Nacional de la Cascada de Basaseachic 33 1 Chihuahua 5244031698 1961-08-12 NY El Salto Puerto Buenos Aires 33 1 Durango 5244031009 1956-08-12 CAS, TEX Mexico Durango El Salto Mountain 33 1 DURANGO 5244032792 1986-08-24 NY Mexico Just Mazatlan Mexican Hwy 33 1 DURANGO 5244032038 1965-10-06 NY Mexico Crest of Sierra Madre El Salto on Mazatlan Pto. Buenos Aires 33 1 DURANGO 5244031838 1965-10-18 NY Mexico Sierra Madre 33 1 DURANGO 5244030318 1982-08-18 MEXU Mexico Topia Santiago Papasquiaro 33 1 DURANGO 5244031213 1965-10-06 NY Mexico Crest of Sierra Madre El Salto on Mazatlan Pto. Buenos Aires 33 1 DURANGO 5244030920 1919-09 South Africa Panuco 33 1 SINALOA