Tephrosia leiocarpa A. Gray

Cracca calva Rydberg, sp. nov
Tephrosia affinis S. Wats. Proc. Am. Acad. 22: 405. 1887. Not T. affinis S. Wats. 1886.
A perennial herb, 6—10 cm. high, woody at the base; stem and branches angled, slender, finely strigose; leaves 8-15 em. long; stipules setaceous, 8-10 mm. long; petiole 1-2 cm. long, as well as the rachis strigose; leaflets 9-17, oblong or oblong-oblanceolate, obtuse to retuse at the apex, mucronate, 2.5-3 cm. long, 8-10 mm. wide, glabrous above, silky-strigose beneath; racemes terminal and in the upper axils, long and slender, 1.5-2 dm. long; flowers 1 or 2 at each node; bracts subulate, deciduous; calyx silky-strigose, the tube 2.5-3 cm. long, the lobes subulate, 4 mm. long; corolla rose-colored, about 20 mm. long; banner broadly obovate, silky-strigose without; wings obliquely obovate, with a large basal auricle; pod about 5 cm. long, straight, 6 mm. wide, glabrous, 7-8-seeded.
Type collected on the slopes of the barranca of Guadalajara, Jalisco, June 11, 1902, Pringle 9773 (Herb. N. Y. Bot. Gard.). Distribution: Jalisco.

Cracca leiocarpa (A. Gray) Kuntze, Rev. Gen. 175. 1891
Tephrosia leiocarpa A. Gray, PI. Wright. 2: 36. 1853. Tephrosia afinis S. Wats. Proc. Am. Acad. 21 : 424. 1886. Tephrosia viridis M. E. Jones, Contr. W. Hot. 12: 7. 190b. Cracca affinis Rose, Contr. U. S. Nat. Herb. 12: 269. 1909.
A perennial herb, from a thick woody root; stems several, 3-5 dm. high, angled, striate, strigose; leaves 10-15 cm. long; stipules 4-6 mm. long, setaceous; petiole 1-3 cm. long; rachis sericeous-strigulose; leaflets 9-19, oblong, 2-4.5 cm. long, 5-7 mm. wide, obtuse or acutish, apiculate, glabrous above, cinereous-strigose beneath; racemes terminal and axillary in the upper axils, short-peduncled; bracts caducous; pedicels 5-8 mm. long; calyx cinereous-strigose, the tube 3 mm. long, the lobes lanceolate, 3 mm. long, acuminate; corolla rose-colored or purplish, 15-18 mm. long; banner strigulose on the back, suborbicular, longer than the other petals; wings oblong with an acute basal lobe, short-clawed; keel-petals semi-orbicular, shortclawed; pod glabrous, 3-5 cm. long, 6 mm. wide, straight, about 10-seeded; seeds sub-orbicular, brownish.
Typb locality: On the Sonoita, near Deserted Rancho, Sonora. Distribution: Southern Arizona to Sonora and southern Chihuahua.

Perennial, Shrubs, Herbs, Stems woody below, or from woody crown or caudex, Taproot present, Nodules present, Stems erect or ascending, Stems less than 1 m tall, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Stems or young twigs sparsely to densely hairy, Leaves alternate, Leaves petiolate, Stipules inconspicuous, absent, or caducous, Stipules setiform, subulate or acicular, Stipules persistent, Stipules free, Leaves compound, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 10-many, Leaves hairy on one or both surfaces, Inflorescence s racemes, Inflorescence terminal, Inflorescence leaf-opposed, Bracts conspicuously present, Bracts very small, absent or caducous, Flowers zygomorphic, Calyx 5-lobed, Calyx hairy, Petals separate, Corolla papilionaceous, Petals clawed, Petals white, Petals pinkish to rose, Petals red, Petals blue, lavander to purple, or violet, Banner petal suborbicular, broadly rounded, Wing petals narrow, oblanceolate to oblong, Wing petals auriculate, Wing tips obtuse or rounded, Keel petals auriculate, spurred, or gibbous, Keel tips obtuse or rounded, not beaked, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Style sharply bent, Style hairy, Style hairy on one side only, Fruit a legume, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit strongly curved, falcate, bent, or lunate, Fruit exserted from calyx, Valves twisting or coiling after dehiscence, Fruit beaked, Fruit glabrous or glabrate, Fruit 3-10 seeded, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black, Seed surface mottled or patchy.

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