Dalea cliffortiana Willd.

Thornbera pumila Rydberg, sp. nov
A low annual; stem branched from near the base, 1-3 dm. high, angled, glabrous and slightly glandular-dotted; leaves about 2 cm. long; stipules subulate, 1-2 mm. long; rachis glabrous, slightly margined; leaflets 7-9, linear-oblong or oblanceolate, 5-10 mm. long, glabrous on both sides, finely glandular-dotted beneath; peduncles terminating the branches, about
1 cm. long; spikes very dense, short, 1-2.5 cm. long, 6-8 mm. thick; bracts broadly obovate, abruptly short-acuminate, dark, with conspicuous straw-colored margins, densely glandulardotted on the backs, ciliate on the margins; calyx-tube campanulate, 2 mm. long, densely silky; lobes subulate, equaling the tube, silky-plumose; banner white, the blade broadly oval,
2 mm. long, the claw 3 mm. long; other petals blue, oblong, 3 mm. long, with very short claws; pod densely pubescent above, glabrous at the base.
Type collected at Culiacan, Sinaloa, October 5, 1904, T. S. Brandegee (U. S. Nat. Herb. no. 571945).
Distribution: Sinaloa.

Thornbera robusta Rydberg
Dalea virgata M. Micheli, Bull. Herb. Boiss. 2: 442. 1894. Not D. virgata Lag. 1816.
A stout annual; stem branched, erect, glabrous, glandular-dotted; leaves 2-3 cm. long, ascending; stipules subulate-setaceous, 2-3 mm. long; rachis glabrous, margined, glandulardotted; leaflets 9-1 1, linear, 4-10 mm. long, glabrous on both sides, copiously glandular-dotted beneath; peduncles terminating the branches, 1-3 cm. long; spikes dense, 2-5 cm. long, fully 1 cm. thick; bracts ovate, caudate-acuminate, dark, densely glandular-dotted, puberulent on the back, ciliate on the margins, 6-7 mm. long; calyx-tube campanulate, 10-ribbed, silky, not conspicuously glandular-dotted between the ribs; lobes subulate, 3 mm. long, plumose; banner white, the blade oval, 2 mm. long, the claw 3.5 mm. long; other petals blue or purple, the blades oval, nearly 2.5 mm. long, oblique at the base, the claws less than 0.5 mm. long; pod densely pubescent at the apex, glabrous below.
Type locality: Near San Jose and Buenos Ayres, Costa Rica. Distribution: Guatemala to Panama.

Parosela acutifolia (DC.) Rose, Bot. Gaz. 40: 144. 1905
Dalea acutifolia DC. Prodr. 2: 245. 1825.
A shrub, 1-3 m. high; branches glabrous and terete; leaves 5-12 cm. long; stipules lanceolate, 3 mm. long; petiole about 8 mm. long; rachis glabrous, slightly margined, sparingly punctate; stipels gland-like; leaflets 7-11, elliptic or oval, acute at the base, cuspidate at the apex, 1-2.5 cm. long, glabrous and bright-green on both sides, glandular-punctate beneath; peduncles glabrous, axillary, 5-12 cm. long, glabrous; spikes elongate, rather lax, 5-15 cm. long; bracts ovate, acute, brown, minutely ciliate, caducous; calyx-tube broadly campanulate, 2.5 mm. long, silky-villous, strongly 10-ribbed; calyx-lobes triangular-lanceolate, abruptly long-acuminate, about equaling the tube; corolla at first greenish-yellow, turning dark reddishpurple; blade of banner rounded-ovate, nearly 3 mm. long, the claw 2 mm. long; blades of the wings 4 mm. long, those of the keel-petals 5 mm. long, the claws of both 2 mm. long; pod broadly obliquely obovate, silky villous.
Type locality: Chilapa Mountains, Guerrero. Distribution: Morelos and Guerrero.

Thornbera dalea (L.) Rydberg
Psoralea Dalea L. Sp. PI. 764. 1753.
Psoralea annua Mill. Card. Diet. ed. 8. Psoralea no. 6. 1768.
Dalea Clifforliana Willd. Sp. PI. 3: 1336. 1803.
Dalea Linnaei Michx. Fl. Bor. Am. 2: 57, in part. 1803.
Amorpha glandulosa Blanco, Fl. Filip. 555. 1837.*
Dalea nigra Mart. & Gal. Bull. Acad. Brux. 10 2 : 43. 1843.
Dalea alopecuroides Blanco, Fl. Filip. ed. 2. 389. 1845. Not D. alopecuroides Willd. 1803.
Dalea annua Kuntze, Rev. Gen. 178. 1891.
Dalea annua Clifforliana Kuntze, Rev. Gen. 178. 1891.
Dalea Dalea MacM. Metasp. Minn. Valley 330. 1892.
Dalea glandulosa Merrill, Philip. Gov. Lab. Bur. Bull. 27: 37. 1905.
Parosela nigra Rose, Contr. U. S. Nat. Herb. 10: 105. 1906.
Parosela Clifforliana Rose, Contr. U. S. Nat. Herb. 10: 105. 1906.
An annual; stem much branched, 2-8 dm. high, angled, glabrous, rather copiously glandular-dotted; leaves 2-4 cm. long; stipules subulate, 3 mm. long; rachis glabrous, wing-margined, copiously glandular-dotted; leaflets 7-15, oblong-oblanceolate, 5-10 mm. long, glabrous on both sides, conspicuously glandular-dotted beneath; peduncles about 1 cm., long, terminating the brandies; spikes very dense, 1-3 cm. long, 8 mm. thick; bracts rhombic-lanceolate, acuminate, blackish, conspicuously glandular-dotted, puberulent or glabrate on the back, ciliate on the margins; calyx-tube nearly 2 mm. long, campanulate, with 10 dark ribs, with a row of glands in the intervals, silky; lobes lance-subulate, fully as long as the tube, silky-plumose;
* The Philippine plant is usually somewhat more slender than the Mexican. banner white, the blade oval, 1.5-2 mm. long, the claw 2.5 mm. long; other petals blue or rarely rose-purple, the blades broadly oval, oblique at the base, 2 mm. long, the claws less than 0.5 mm. long; pod short-pubescent at the apex, otherwise glabrous.
Type locality: "America" [according to several references: Veracruz].
Distribution: Mexico, from Verzcruz and Tepic, south; also Philippine Islands (native?).