CACTACEH OF EMORY’S RECONNOISSANCE. 111 
3. Mamrnnarta. Nov. 4, 1846. Abundant. Several (fig. 3) oval stems from one base, 14-2} inches high 
and 1} inch in diameter ; tubercles in about 13 rows ; spines whitish, short ; one small obovate red berry toward the 
apex not more than 1} line long. 
If the figure is correct, this species ought to be distinguished by the name of M. microcarpa, as I know of no 
other Mamillaria with such a small fruit 
4, Ecurnocactus WIistizent, Engelmann in Wislizenus’s Report. Oct. 26, 1846.. In addition to the descrip- 
tion in Dr. Wislizenus’s Report, which I have drawn up from dried specimens, I observe in this figure that the 
species has twenty-one oblique ribs, is of an oval shape and bluish-green color; the ribs are acute, but not compressed, 
according to the representation of a section, and the grooves corresponding. 
Ecurnocactus. Oct. 25, 1846. 18 inches in diameter; height equal to the diameter; shape ventricose, 
eotitrasted towards the vertex, ther etaes somewhat urceolate; with 21 straight sharp ribs; spines apparently 8, straight, 
brown, color of plant bright green; vertex whitish Gomentoce ?); fruit 1 or 14 inches ion, oval, yellowish or reddish. 
Seed obovate, obliquely truncated at base, full 1 line long, black, opaque, * slightly opens: embryo curved or 
hooked, cotyledons accumbent, partly buried in the large farinaceous albumen. 
This species is distinct from all other New Mexican species examined by me, and is most probably undescribed. 
I propose to name it after its zealous discoverer, — who has, surmounting numberless difficulties, though occupied by 
severe and arduous duties, found leisure to do so much for the advancement of our knowledge of the wild countries 
traversed by him, — Echinocactus Emoryt 
6. Crrevus. Nov. 21, 1846. 3 feet high. There can be but little doubt that we have here a species 
before us, which I have ie from Dr. Wislizenus and from Dr. Gregg, from the neighborhood of Chihuahua, [158] 
and which I have described in Dr. Wislizenus’s report by the name of C, Greggti, — erect, branching, with 
5 Se ribs, dark green, with whitish areole, and about 8 short dusky spines. 
ecimen figured here is very remarkable on account of the fruit, which was unknown to me. Provided the 
desta is ed we have here a smooth oval acuminate fruit, crowned with the remains of the corolla, and sup- 
ported by a distinct stipe of a bright crimson color. stipe, as well as such an acumination, I have not seen in 
any other fruit of a cactus, Fruit, with the long acumination, 2} inches long, ? to 1 inch in diameter, stipe about 
$ inch long. 
Opuntta. Very abundant on the Del Norte and Gila. No date nor statement whether the figure represents 
the enburad size or is smaller. The species belongs to the section elliptice of Salm. It is ascending, older stems 
prostrate, branches and younger joints erect, 8-10 inches high ; joints orbicular-obovate, rounded, obtuse or sometimes 
acutish, of a bluish-green color, 1}-25 inches long and little less wide ; spines short and whitish ; berries obovate, 
scarlet, only about 3 or 4 lines long. If the figure represents the natural size, this species ought to bear the name 
. microcarpa. 
8. OpunTIA. Oct. 28, 1846. Common on the Gila. Much branched, sub-erect, joints obovate, often acutish, 
purplish, with 2 or 3 longer brown spines directed oe ; fruits obovate, red. In the figure the joints are 
14-2 inches long and 1-17 ‘wide ; fruit about 3 lines 
There are several Opuntice known with Sa iscdacl joints, but none in the least resembling this, and I must 
consider it as a distinct species, to which I would give the name of 0. violacea. 
9. Opuntia? Oct. 22, 1846. Abundant on the Del Norte and Gila. A remarkable plant, apparently more 
like a Mamillaria than like an Opuntia. The fruit is also represented without areole or tubercles, exactly like 
the smooth fruit of a Mamillaria ; but this aaah = an oversight in the artist. The habit of the plant suggests the 
belief that it is an Opuntia of the section cylindrac 
Joints or branches ascending, shapes iad, 4-6 inches long, 1-1} inches in diameter ; tubercles 
very prominent, with about 8 long (1-1 inches) straight spines ; fruit shovate, umbilicate, searlet, towards the top of 
the branches, about 9 lines long and 6 in ales, It is a distinct species, which I am gratified to dedicate to the 
skilful artist who has drawn all these figures, — Mr. J. 11. Stanly. I therefore propose for it the name Opuntia 
Stanly. 
10. Opuntia. Nov. 3, 1846. 4 feet high. Stem erect, with verticillate horizontal, or somewhat pendulous 
branches ; branches cylindrical, strongly tuberculated, about 8 lines in diameter, with short spines on the tubercles ; 
fruit pale-yellow, clavate, tuberculate, umbilicate, 1-2} inches long, 6-8 lines in diameter. 
is is probably the Opuntia arborescens, Engelmann in Wislizenus’s Report, though the spines are represented as 
being shorter than in my ae of O. arborescens from New Mexico and Chihuahua. 
11. Opuntia. Novy. 2, 1846. Somewhat resembling the last, but forming “low, wide-spreading bushes.” 
Joints more slender, only sot 4 or 5 lines in diameter, alternating (not opposite nor verticillate), forming with the 
