OF ARTS AND SCIENCES. 47 



Dksmodium (Heteroloma) scopulorum. Annual, erect, 

 branched, 2 feet high, the stem scabrous with very short stiff un- 

 cinate hairs ; leaves 3-foliolate, the stipules and stipels setaceous ; 

 petioles ^ to 1 inch long ; leaflets thin, linear-lanceolate, 1 to 2^ 

 inches long by 1 to 5 lines broad, acutish, pubescent on the margin 

 and nerves : racemes terminal and axillary, very slender, loosely 

 flowered: flowers whitish, minute (scarcely 1^ lines long), ou spread- 

 ing pedicels, solitary or in pairs : fruit 4-lobed, only the terminal lobe 

 usually fertile ; lobes 4 or 5 lines long, nearly semicircular, the 

 ventral side straight, finely uncinate-bristly on the margin, the sides 

 nearly glabrous. — Ou rocky ledges in the mountains about Guay- 

 mas. (258.) 



Phaseolus filiformis, Benth. Mountains about Guaymas. (250.) 



Phaseolus atropurpureus, DC, var. sericeus, Gray. Muleje 

 and Guaymas. (8.) 



Rhynchosia phaseoloides, DC. Seeds wholly red. Muleje. (1.) 



Cesalpinia gracilis, Benth. A shrub 3 to 6 feet high, with 

 bijugate leaves, 10 stamens, and pods (1 to 1|- inches long by 9 lines 

 broad) mostly 1 -seeded : seeds 5 lines in diameter. — Hills and moun- 

 tains about Guaymas. (147, 147^.) 



C^SALPiNiA (Fomaria) Palmeri.' An unarmed glabrous shrub 

 8 to 10 feet high: jngK 1 to 4 pairs and an odd one, on a slender 

 rhachis from ^ to 3 inches long ; leaflets 2 or 3 pairs, oblong-elliptical, 

 obtuse, 1 to 3 lines long : racemes terminal or axillary, sessile, short, 

 few-flowered, glabrous or subpubescent: calyx-tube oblique; lobes 

 nearly equal, obtuse, 3 lines long ; petals brownish orange, covered 

 more or less thickly on the back and claw with white substipitate 

 glands : filaments and ovary pubescent : pod sessile, thin-coriaceous, 

 glandular-dotted, falcate, 11 inches long by nearly ^ broad, attenuate 

 downward, usually 2-seeded : seeds 3 lines broad. — Guaymas. (70.) 



H^MATOXYLON BOREALE, Watson. "Brazil"; used as a dye, and 

 the young wood as a remedy for jaundice. Hillsides and stony ravines 

 about Guaymas. (125.) 



HOFFMANSEGOIA MICROPHYLLA, Torr., and var. GLABRA. On 



stony ridges at Los Angeles Bay. (543.) 



Cassia Covesii, Gray. " Ojacen " ; used in infusion for colds and 



fevers. Guaymas and Los Angeles Bay. (313, 575.) 

 Cassia nictitans, Linn. About Guaymas. (242.) 

 Tamarindus Tndica, Linn. From three small trees in abandoned 



gardens at Guaymas, said to have been planted many years ago by 



Chinamen from Manilla. (56.) 



