RYDBERG: ASTRAGALUS AND ITS SEGREGATES 667 
This and the following differ from the typical species of 
Homalobus in having almost terete instead of flattened pods. The 
pods are, however, of the same texture, wholly one-celled and 
with prominent sutures, and the plants are of the same general 
habit. 
Homalobus Hallii (A. Gray) Rydb. 
Astragalus Halli A. Gray, Proc. Am. Acad. 6: 224. 1863. 
Homalobus Fendleri (A. Gray) Rydb. 
Astragalus Fendleri A. Gray, Pl. Wright. 2: 44. 1853. 
Homalobus proximus Rydb. sp. nov. 
Cespitose perennial, related to H. Paciermet stems erect, 2—3 
dm. high, grayish-strigose; leaves 4-46 cm. long; stipules tri- 
angular-ovate, glabrous; leaflets 5—11, sear or linear-oblong, 
obtuse, 5-11 mm. long, 1-2 mm. wide, grayish-strigose ; racemes 
erect, 5-10 cm. long; calyx about 2.5 mm. long, strigose; corolla 
4-5 mm. long, white or ochroleucous; pod oblong-linear, terete, 
glabrous, about 12 mm. long and 3 mm. in diameter, glabrous, 
acute at the apex, abruptly contracted into a short stipe about 
equaling the calyx. 
Cotorapo: Arboles, June, 1899, C. F. Baker gar. 
Homalobus Salidae Rydb. sp. nov. . 
Decumbent or ascending perennial ; stem 3 dm. or more long; 
leaves 5-7 cm. long ; stipules triangular-ovate, strigose ; leaflets 
15-21, oblong-oblanceolate to narrowly linear, 8-15 mm. long, 
0.5-3 mm. wide, strigose ; racemes 10-15 cm. long, lax; pedicels 
5mm. long; bracts minute; calyx campanulate, strigose and slightly 
black-hairy, about 3 mm. long; teeth short, triangular; corolla 
about 8 mm. long, purple-veined ; pod narrowly linear-oblanceolate, 
terete or nearly so, 2-2.5 cm. long, 2 mm. in diameter, finely stri- 
gose, very acute at the apex and gradually tapering into a short 
stipe below 
CoLorapo: Salida, August 3, 1896, C. LZ. Shear 3468. 
Homalobus macrocarpus (A. Gray) Rydb. 
Phaca macrocarpa A. Gray, Pl. Fendl. 36. 1849. 
Astragalus lonchocarpus Torr. Pac. R. R. Rep. 4: 80. 1856. 
This species is doubtfully referred to Homalobus. It may 
represent a monotypic genus of its own. The relationship is how- 
ever much closer to Homalobus than to Phaca, with which it has 
been associated. 
