Asian Indigo

Indigofera rosei Rydberg, sp, nov
Stem erect, shrubby at the base, terete, sparingly strigose, 3-5 dm. high; leaves 3-4 cm. long; stipules subulate, 2-3 mm. long; rachis and petiole sparingly strigose; leaflets 3-5, oval or elliptic, rounded at each end, mucronate, 1-2.5 cm. long, sparingly strigose; racemes 5-10 cm. long, lax; calyx about 3 mm. long, strigose; teeth subulate, a little longer than the tube; corolla purplish, 4 mm long; pod linear, somewhat arched, 3-3.5 cm. long, 1.5 mm. wide, abruptly acute, S-10-seeded.
Type collected near San Juan Capistrano, Zacatecas, August 22, 1897, J . N , Rose 24SO (herb. N. Y. Bot. Garden).
Distribution: Zacatecas to Puebla.

Indigofera laevis Rydberg, sp. nov
A perennial, shrubby below; stem branched, probably 1 in. high; branches straw-colored, sparingly strigose; stipules subulate-setaceous, 3 mm. long; leaves 4-6 cm. long, spreading; rachis and petiole sparingly strigose; leaflets mostly 5, short-petioluled, elliptic or oval, mucronate, rounded at each end, 1.5-3 cm. long, light-green, glabrous above, sparingly strigose beneath; racemes 1-1.5 dm. long, lax; bracts lance-subulate, deciduous, 1-2 mm. long; calyx about 3 mm. long, strigose, the lobes subulate, twice as long as the tube; corolla 4-6 mm. long; pod reflexed, slightly curved, 3-4 cm. long, 2 mm. wide, gradually acuminate at the apex, bluntly 4-angled, sparingly strigose, 8-10-seeded.
Type collected among rocks and bushes in the mountains near Guaymas, Sonora, in 1887, Edward Palmer 296 (Gray Herbarium).