EOBINSON AND GREENMAN. — MEXICAN PLANTS. 383 



in length, oblong, rounded at the apex and base, glabrous, glandular- 

 punctate beneath : spikes elongated, terminal, very loosely flowered ; 

 peduncles 2-2£ inches in length , Moral rachises as long or longer ; 

 bracts ovate, acuminate, glabrous, caducous, 3 lines long : calyx very 

 villous, resinous-dotted between the ribs, 3-4 lines long ; the teeth 

 filiform, plumose, much longer than the tube : corolla light-colored with 

 purple glandular dots ; keel 4 lines long. — Collected upon limestone 

 hills, Villar, San Luis Potosi, 14 September, 1893 (no. 5472). 



Dalea unifoliata. Slender, smooth, annual, with spreading 

 branches from near the base, a span to a foot in height . stem glandular- 

 punctate: leaves strictly unifoliate ; petioles 3-4 lines long; leaflet 

 broadly ovate, truncate or subcordate at the base, rounded at the apex, 

 glandular-crenate ; the larger ones 6-7 lines long, equally broad : 

 racemes terminal or nearly so, 2-3 inches long ; pedicels \ line in 

 length : calyx turbinate, finely pubescent with curved hairs along ten 

 prominent nerves, and ciliate upon the margin, nearly 2 lines long: 

 vexillum small, white, much exceeded by the violet wings and keel ; 

 the latter about 2 lines in length : ovary apparently but one-ovuled. — 

 Collected in Orizaba by F. Muller, August, 1853 (no. 663), and in 

 dry, thin soil, barranca of Tequila, Jalisco, by Mr. Pringle, 6 October, 

 1893 (no. 4585). A very attractive and well marked species, which 

 has long been represented in several herbaria by Midler's specimens, 

 for which, we find no description. 



Tephrosia macrantha. Tall, 6-12 feet in height: branches 

 angled and strongly ribbed, fulvous-tomentose as well as the peduncles 

 and petioles: upper leaves 3-5 inches in length 5 leaflets 17-23, nar- 

 rowly elliptic to lance-oblong, obtusish to cuneate at the base, acutish 

 or obtuse and often apiculate at the apex, grayish with a fine appressed 

 pubescence upon both surfaces, tawny upon the midrib beneath, 11-14 

 lines long, 3 lines broad; petiolules 1 line long: panicles large ter- 

 minal, of numerous spreading pedunculate racemes (6-9 inches in 

 length) ; bracts linear-filiform, 4 lines in length, 3-nerved, appressed 

 silky-pubescent ; pedicels ascending, 2^ lines long, grouped by 2's and 

 3's: calyx finely pubescent, campanulate, 3 lines in length, parted to 

 the middle; teeth slender, lanceolate, attenuate: corolla fully 1 inch 

 in length, in the dried specimens lilac ; standard orbicular, streaked 

 with green, its slender claw exserted from the shallow tube of the 

 calyx ; aire oblong, oblique at the base ; parts of the keel obtusely 

 auricled : free stamen biglandular at the base, as is also the stamineal 

 tube : pods 2-2^ inches long, deflexed, falcate, tipped with the atten- 

 uate style, finely pubescent, 5-10 seeded. — Collected on hills near 



