oe [ 26] 
astern Mexico, Pinus osteosperma,* (specimens of which were sent to 
me by Dr. Gregg, as collected on the baitlefield of Buena Vista,) and to 
the nut pine of California, P. monophylla, Torr. and Frem.—these three 
species being the western eteaeh dates of Pinus Pinea and Cembra o 
the isso continent. 
second species, Pinus brachyptera, * is the most common pine of 
New Mexico, and Bel most useful for timber. A third species, Pinus flexi- 
pe Jam en) vat overlooked by Dr. Wislizenus, but has been collected in 
s, by Mr. Fe adler, about Santa Fe. Its leaves in fives and 
eainlons cyiidneal squatrose cones ppt it to Pinus strobus; but 
the seed is large and edible, as Dr. James has rage 9 NG sondekod. and the 
leaves are not serrulate ail much stout. The Pinones, so much eaten 
in Santa Fe, fet principally to be the product of Pinus edulis. I shall 
have occasion to speak of three other pines when I come to the flora of 
the mountains of Chihuahua. 
Linum perenne makes its first appearance here, and continues to Santa 
Fe, as well as the justly so-called Lathyrus ornatus. Several species of 
We (Enothera, Artemisia, and Pentstemon, were collected in this 
istrict 
Among the most remarkable plants met with were the Cactacea. After 
having observed on the Arkansas, and northeast of it, Sai aie but an 
opuntia, which probably is not different re 0. vulgaris, Dr. W. came 
at once, as soon as the mountain region and the pine seek commenced, 
on several beautiful and interesting members of this curious family, an evi- 
dence that he approached the favorite home of the cactus tribe, Mexico 
‘aggon-mound the first (flowerless) specimens of a strange opuntia 
were found, with an erect, ligneous stem, and cylindrical, horridly spi- 
*Pinus osteosperma, n. sp.—squamis turionum olongato-acuminats, 
Mconthie borders, near Buena Vista, and about Saltillo. A small tree, 
10 to 20 feet high; leaves in threes, more rarely in twos, | to 2 Bis longs 
much more slender than in the foregoing species; nut of the 
but much harder. Pinus monophyilla has broadly ovate, obtuse, adaeeed 
scales "of the young shoots = mostly single, terete leaves; cone and 
og S are similar.to both other 
4nUs brachyptera, n. Sp. —squamis turionum longe acuminatis, ‘$a. 
tiie squarrosis, longatis suggest foliis seem 
q ;va 
(raro_ binis s. quaternis) utramque a vdibus et aspero striatis; strobilis 
erectis, ovatis s. elongato conicis, squamis recurvo aculeatis; seminibus 
obovatis breviter alatis. 
untains of New Mexico, common. A large and fine tree, st 80 
to 100 feet high, 2 and even 3 feet in diameter; sheaths 6 lin 
mostly black; leaves —_—, in threes, ig ee 3} to 6 inches laiedit in the 
specimens before me, crowded towards the end of the branches; cones 2} 
lt Mie inches long seed larger than the wing, without this 3 ae 
long and 2 wide. 
