426 PROCEEDINGS OF THE AMERICAN ACADEMY 



pod flat, thin-coriaceous, indehiscent, glabrate, 3 inches long by IJ 

 broad, obtuse, apiculate, abruptly narrowed at base to a short stipe (a 

 line long) or rounded and sessile, not septate, 3-o-seeded : seeds flat, 

 elliptical, 5 lines long. — On rocky mountain-sides at Hacienda San 

 Miguel (K), called " Palo Colorado," and the wood used for making 

 bows and hoops. Very similar to an undetermined species (ticketed 

 by Mr. Bentham '•'■ CcEsalpini^ aff.") collected by Fendler (n. 1864) 

 near Tovar in Venezuela, which is more coarsely pubescent, the single 

 leaf (in herb. Gray) with two pairs of pinnae and oblong- or ovate-lan- 

 ceolate acute leaflets, and the pubescent pods (5 by 1|- inches) upon a 

 stipe 5 or 6 lines long. 



H^MATOXYLON BOREALE. A shrub OF Small tree, 8 to 12 feet 

 high and 6 inches in diameter, armed with stout axillary thorns (3 or 

 4 lines long) : leaves glabrous, simply 23innate with 3 pairs of leaflets 

 or the lowest pair developed into pinnte of 1 or 2 pairs ; leaflets round- 

 obovate, mostly emarginate, finely pinnate-veined, 6 lines long or less : 

 racemes short, simple and sessile in the axils or terminal and panicled, 

 the slender pedicels ^ inch long or less : calyx-disk 2 lines broad ; 

 petals yellow, round-obovate (4 lines long) : ovary and filiform style 

 pubescent ; pod 1 to 1 1^ inches long. — Closely resembling H. Cam- 

 pecheanum in foliage, but the larger flowers in shorter and more open 

 racemes, with a much broader calyx and broader petals. Known as 

 " Brazil," and the wood used as a red dye. Hacienda San Miguel 

 (247, T). 



Cassia leptocarpa, Benth. — Same locality (167). 



Cassia occidentalis, Linn. — Same locality (190). 



Cassia biflora, Linn. ? Leaflets 3 to 6 pairs ; pod falcate, 3 or 

 4 inches long. — Hacienda San Jose (72). 



Cassia emarginata, Linn. A small tree, 15 feet high and a foot 

 in diameter, with a very ofl'ensive odor : leaflets 2 pairs, 2 to 4 inches 

 long: pod 15 inches long. — Hacienda San Miguel (210); collected 

 also by Berlandier between Tula and Tampico. 



Cassia nictitans, Linn,, var., with unusually long pedicels (3 or 

 4 lines) and the glands of the petioles raised upon a slender stipe. — 

 Same locality (175). 



Desjianthus BICORNUTUS. l^ear D. leptolobus : herbaceous, erect, 

 4 feet high, glabrous : leaves with long filiform stipules, and a conspicu- 

 ous bifid gland near the base of the petioles; pinnjB 10 to 13 pairs, 

 the numerous acute leaflets aline long: peduncles axillary and in a 

 terminal leafy raceme, the lower shorter than the leaves : pod straight, 

 narrowly linear, 1 or 2 inches long, 10-15-seeded. — San Jose (43). 



