56 UNITED STATES AND MEXICAN BOUNDARY. 
ASTRAGALUS GLAREOSUS, Dougl. in Hook. ЕІ. Воғ.--Ат. 1, р. 152? Меат the Copper Mines, 
May— June ; Bigelow. Guadaloupe Pass, Sonora. 
ASTRAGALUS HARTWEGI, Benth. Pl. Hartw. р. 10. El Podrero, near the 110° of longitude, 
Sonora ; Schott. 
ASIRAGALUS CYANEUS, Gray, Pl. Fendl. p. 34. Doña Ana, New Mexico, April; Thurber. 
ASTRAGALUS VACARUM, Gray, Pl. Wright. 2, p. 43. Ojo de Vaca, Chihuahua ; Thurber. 
ASTRAGALUS (PHACA) TEPHRODES, Gray, Pl. Wright. 2, p. 45. Gravelly plains near the base 
of the Organ mountains and on the Mimbres, New Mexico, April—May ; Bigelow, Thurber. 
ASTRAGALUS (PHAcA) FENDLERI, Gray, 1. c. p. 44. Hills at the Copper Mines, October, (in 
fruit); Bigelow. 
AsSTRAGALUS (PHACA) SONORA, Gray l. с. Tubac, Sonora, March ; Parry. 
ASTRAGALUS (PHACA) Тновввт, Gray, Pl. Thurb, p. 312. Fronteras, Sonora, June; Thurber 
ASTRAGALUS (РНАСА) LEUCOPSIS, Torr. & Gray, Fl. 1, p. 694. 了 haca canescens, Nutt. in Torr. 
£ Gray, l. с. p. 344, non Hook. & Arn. (Tas. XVI.) San Diego, California; Parry, Schott. 
The pods are about an inch and a quarter long, excluding the stipe, which is 4 lines long. 
ASTRAGALUS (PHACA) скотАрАвтж, Benth, Pl. Hartw. p. 307. (Tas. XVII.) Mountains east 
of San Diego, California, June, (with flowers and ripe pods;) Parry. А stout species, 
commonly 4—6 feet high. 
ASTRAGALUS (PHACA) TRIFLORUS, Gray, Pl. Wright. 2, p. 45. Phaca triflora, DC. Sandy plains 
and mountains on the upper Rio Grande, in New Mexico and western Texas ; also in Cohahuila ; 
April. 
—  Oxyrropis LAMBERTI, Pursh, var. Gray, Pl. Wright. 1, р. 53. Hills near the Copper Mines, 
and Ojo Caliente; Bigelow. : За (0) 
Sf, =” Онжтослтхх WISLIZENI, Gray, Pl. Wright. 1, р. 51, & 2, p. 45. (Тав. XVIII, fig. 5—7.) 
2/2. Mount Carmel, and mountains of Em 22 assasi p^ uio T ді. (in fruit ;) Parry, 
Bigelow. a eect гүй 
ds CHÆTOCALYX guis (n. sp. 3 дэлсэх fere Me ay foliolis 5 ovatis acutis valde mucronatis 
27214538 concoloribus ; dentibus calycis lineari-subulatis nudis tubo sub duplo-longioribus ; carina ale 
' ены" staminibus superne equaliter diadelphis. (Тав. XVIII.) Sierra Verde, Aroyo 
/ 2 de los Samotas, Sonora, August; Schott. Stem branching from a somewhat woody base, 
slender, 2—3 feet long, twining towards the extremity.  Leaflets 6—8 lines long, thin, those 
of the lowest leaves obtuse, the others acute and pointed with a conspieuous mucro. Flowers 
about six in axillary fascicles or short racemes. Pedicels rather shorter than the flowers. 
Calyx broadly campanulate, entirely destitute of glands. Corolla yellow. Vexillum ovate. 
oblong, emarginate, slightly pubescent. Wings and keel-petals oblong, acute. Stamens mona- 
delphous below, diadelphous above, five on each side of the pistil. Ovary, mostly three-ovuled. 
Mature pod not known, but the young ones are 2—3-jointed ; the terminal joint foliaceous and 
dilated. Differs from C. Wislizeni in the narrow acute leaves, and the long teeth of the calyx. 
ZORNIA TETRAPHYLLA, Micha, РІ. 2, p. 16; Torr. & Gray, Fl. 1, p. 354. Laredo and Ring- 
gold Barracks, June; Schott. 
—— DESMODIUM GRAHAMI, Gray, Pl. Wright. 2, p. 48. Rocky places, on mountains of the Limpio 
river, and hills at the Copper Mines, July—August ; Bigelow. 
— DESMODIUM annuum, Gray, l. c. Santa Cruz, Sonora, September; Thurber. 
с үзэ va, wth ee a ta Эн. 
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