BOTANY. “> 29 
ali 
Yuceca Baccata, Torr. in Bot. Mex. Bound. Survey, 2, p. Sitgreaves’s Pass; March 25. (gee! 
Stem, 3-10 feet high. Leaves, 15 inches long. Panicle, two feet long. Flowers more than 
two inches in diameter, the segments ovate-oblong, straw color internally, brownish-purple 
externally. The fruit was not collected; the specimens agree so well in other respects with Y. 
baccata that they must belong to that species. ; 
Yucca Wuippiel, Torr. in Bot. Mex. Bound. Surv., p. 222. Y. aloifolia, Linn. Sp., p. 457.2 “« pp 
Torr. Bot. Whipple’s Rep., p. 147. Mouth of Diamond river; April 3; growing in tufts, on 
rocks. Only the leaves were obtained. These so strongly resemble those of Yucca, found at 
Cajon Pass, by Dr. Bigelow, in Whipple’s Expedition, and by Mr. Schott, near San Pasqual, 
that I think they must belong to the same species. 
AMARYLLIDACES. A Nowrbotoyy:: 1 
AGAVE, n. sp.? Camp 65; March 31. The specimens consist of only a single leaf, and a 
portion of the scape. A sketch of the plant was taken by Dr. N ewberry. The leaves form a 
tuft, close to the ground. They are from eight to ten inches long, and taper from a base three- 
fourths of an inch long to a narrow thorny point; the margin is entire, of a thick cartilaginous 
texture. The scape is eight feet high, (including the flowery portion.) Flowers in a long 
raceme, or rather narrow panicle. Peduncles or branches remote, 6-10 lines long, 2-5 
flowered; pedicels very short. Segments of the perianth about six lines long, ovate lanceolate, 
rather obtuse. Stamens longer than the perianth. Anthers linear, the filaments inserted, 
versatile. Ovary obtusely triangular, adhering to the tube of the perianth only partially; 
ovules very numerous in a double series; style as long as the stamen, angular, rather short; 
stigma small capitate. Fruit not collected. This species seems not to be described. It is 
nearly allied to A. parviflora, Torr, in Bot. Whipple's—Eaxpedl., p. 214, but the margin is 
neither filamentous nor denticulate. deve n very 
BROMELIACER. 
DasyLirron ERUMPENS, Torr. Bot. Whippl--Heped:,; p. 216. Camp 65. Yampai creek; 
March 30. Gad Wied a "4 
is MELANTHACEA, 
AnticLea Nurratu, Torr. Bot. Whippl. Exped , p. 144. 
| JUNCACEA. 
Juncus Errusus, Linn. Santa Isabel; November 16. (In fruit.) 
Se OYPERACEX. 
Cyperus Micnavuxianus. Riverside mountain; January 25. 
CypERus ERyTHRORHIZOS, Muhl. Gram., p. 20; Torr. Cyp., p. 280. Fort Yuma to Mojave 
valley; January 14. This species has not been found before west of St. Louis. 
CAREX UMBELLATA. San Francisco mountain; April 26. The specimens are immature. 
Scirpus puncens, Vahl. Enum. 2, p. 255; Gray, Man. ed. 2, p. 499. Near springs, Moqui 
country; May 9. (Camp 92.) 
- GRAMINIA, (By George Thurber.) 
/ Panicum (EcuInocaLoa) Crus-caut, Linn. 
\ Oplismenus Crus-galli, Kunth. Emm. 1, p. 143. Banks of the Colorado generally. 
SETARIA CAUDATA, Roem. & Shultz; Kunth. Emm. 1, p. 153. Long valley and Yampai basin; 
March 31. A very common species, occurring in all the collections from the regions west of 
the Rio Grande. The inflorescence varies greatly; the spike being dense and strict and very 
- loose and flexuose in the same stock of specimens. _ 
