BOTANY. 59 
description of Schauer in Linnea. There are only 2 or 3 pairs of leaflets, and the pod is 3 一 4- 
seeded. The vexillum, also, is destitute of glands and dots. 
CasPARIA, n. sp.? Rocky hills near Santa Rosa, Chihuahua; Parry. Ап erect shrub, 2-3 
feet high. Branches slender, flexuous, smooth. Leaflets distinct to the base, semiovate, very 
obtuse. 3-nerved, very smooth. Pods (old and imperfect) about 2 inches long and one-third 
of an inch wide 
CERCIDIUM TEXANUM, Gray, Pl. Wright. 1, p. 58. Common on the Rio Grande from El Paso 
to Eagle Pass, forming dense thickets in many places. 
CERCIDIUM FLORIDUM, Benth. in Gray, 1. c. (adnot.) ; Torr. in Pacif. В. Road Expl. 6, р. 360, t. 
3. On the Lower Gila and Colorado rivers; Emory, Schott. This is the Palo Verde of the 
Mexicans, and the Green-bark Acacia of т е travellers. 
CASSIA PUMILIO, Gray, Pl. Lindh. 2, р. 180, ё Pl. Wright. 1, p. 59. Elm Creek valley, near 
Eagle Pass, and at the mouth of the Pecos; Schott, Bigelow. 
Cassia RGMERIANA, Scheele in Linnea, 21, p. 457; Gray, Pl. Lindh. 1. с. Arroyo Zoquete 
and gravelly hills near Rock creek ; July—September. 
CASSIA BAUHINIOIDES, Gray, Pl. Lindh. 1. c., & PI. Wright. 1, р. 59. Sandy plains and rocky 
situations, Leon springs and along the Rio Grande from El Paso down to Eagle Pass ; also in 
Chihuahua, Durango, and Sonora, April— August. Leaflets but a single pair in all our speci- 
mens. Near Presidio San Vincente Dr. Parry found a variety with the leaflets broadly ovate. 
The same form is in Mr. Wright’s collection. 
CASSIA LINDHEIMERIANA, Scheele, l. с.; Gray, l. с. Dry ravines near the Flounce mountains. 
Between the San Pedro and the Pecos ; also along the Rio Grande, June, August. Arroyo del 
Pozo Verde; Schott. 
Cassta Wistizent, Gray, Pl. Wright. 1, p. 60, & 2, p. 50. Hills and rocky places. Cañon of 
Bossecillos, on the Rio Grande; August. Parry, Bigelow. San Bernardino, Sonora; June. 
Thurber. Leaflets sometimes 4 pairs, larger than in Wright’s specimens. A neat and showy 
plant, well deserving of cultivation. 
Cassta WRIGHT, Gray, Pl. Wright. 2, p. 50. On the Rio Mimbres, New Mexico; June, 
(flowers and fruit ;) Bigelow. Sierra de los Tanos, Sonora ; Schott. 
CASSIA NICTITANS, Linn.; Torr & Gray, Fl. 1, p. 396. Comanche springs and Leon springs ; 
Bigelow. Differs from the eastern plant in its narrower and more numerous seeded pods, and 
in the stipitate glands of the petioles ; but it does not appear to be a distinct species. 
CASSIA CHAMÆCRISTA, Linn. ; Torr. & Gray, Fl. 1, p. 395. Sandy places between Ringgold 
barracks and Laredo; June. Schott. 
CASSIA CHAMZECRISTOIDES, << Collad. Mon. Cass. р. 134." ©. cinerea, Cham. & Schlecht. With ; 
the last; Schott. | 
CASSIA OBTUSIFOLIA, PESOS Pos. & Gray, Fl. 1, p. 394. Island of the Lost Rock, in the 
Lower Rio Grande ; Schott. 
PanRKINSONIA ACULEATA, Linn.; DC. Prodr. 2, p. 486. Alluvions and prairies of the Lower 
Rio Grande, and hills of the Colorado, near Fort Yuma, California; Schott. Fort Duncan, 
Texas; Dr. Edwards. Between Reynosa and Matamoras, Mexico; Dr. Gregg. An ornamental 
prickly shrub, now cultivated or naturalized in most of the warmer parts of the world, but pro- 
bably, as Alph. De Candolle thinks, of American origin. According to Mr. Schott it is valued 
by хэв Mexican 1 Зарлан ав a febrifage and sudorifie, and also ав a remedy in epilepsy. 
| IYLLA, Torr. in Зэв В. Road Expl. 4, p. 82: glabriuscula ramosissima; 
Wawas 
