LEGUMINOSA. 263 
2. Sesbania longifolia, DC. Prodr. ii. p. 265. 
Aischynomene longifolia, Ortega. 
Norra Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 209). 
Hb. Kew. | 
3. Sesbania macrocarpa, Mihl. in DC. Prodr. ii. p. 266. 
Fiormpa; Louisiana; Texas.—Norta Mexico, Cocospera, Sonora (Thurber); Soura 
Mexico, without exact locality (Jurgensen, 510); Panama, Rio Grande railway-station 
(S. Hayes, 297), Santiago de Veraguas (Seemann, 1186). Hb. Kew. 
4, Sesbania picta, Pers. Ench. ii. p. 316. 
Aischynomene picta, Cav. Ic. t. 314. 
New SPAIN. © 
5. Sesbania tomentosa, Hook. et Arn. Bot. Beech. Voy. p. 286. 
SourH Mexico, Acapulco (Beechey). 
6. Sesbania, sp. 
Mexico (hb. Lambert). Hb. Kew. 
27. ASTRAGALUS. 
Astragalus, Linn. Gen. Plant. n. 892; Benth. et Hook. Gen. Plant. i. p. 506; Bunge, Generis 
Astragali Species Gerontogee (1868-69). 
A vast genus of herbs and dwarf, often spiny, shrubs. Bentham and Hooker estimate 
the number of species at about 500; but Bunge, in his monograph of the Old-World 
species alone, enumerates 971; and in the recently published ‘ Botany of California’ it 
is stated that there are nearly 150 species in North America. They are most abundant 
in Central Asia, very rare in the southern hemisphere, and altogether absent from 
Australia. 
1. Astragalus bigelowii, A. Gray, Pl. Wright. ii. p. 42. 
New Mexico; Texas.—Nort# Mzxico, valley of Santa Cruz, Sonora (ex Torrey). 
9. Astragalus cobrensis, A. Gray, Pl. Wright. ii. p. 43, in adnot. 
Tsxas; New Mexico.—Norra Mexico, Coahuila (Bigelow). 
8. Astragalus (§ Phaca) coriaceus, n. sp. 
Herbaceus, erectus, nanus, ramis crassiusculis flexuosis angulatis puberulis, foliolis 6—8-jugis lon- 
~ giuscule petiolulatis crassiusculis primum strigillosis lineari-oblongis obtusis distantibus, 
racemis paucifioris, calycis hirsuti tubo elongato, dentibus quam tubus quadruplo brevioribus, 
ovario glaberrimo, legumine coriaceo levi glabro cylindrico crasso curvo longiuscule curvato- 
rostrato. / 
Herba perennis, specimina Coulteriana infra semipedalia ; ramis erectis, flexuosis, angulatis, crassius- 
~ eulis, puberulis, internodiis brevibus. Folia breviter petiolata, 1—-2-pollicaria ; foliola 6-8-juga, 
longiuscule petiolulata, crassiuscula, distantia, primum strigillosa, -lineari-oblonga, 5-6 lineas 
longa, obtusa, venis costaque immersis; stipule omnino libere, lineari-lanceolate, circiter 
