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afi§o near Santa Fe and about Chihuahua, and by Mr. Lmdheimer, in | 
Texas; the petals being united about two-thirds of thJfr length, it cannot! 
be retained under the genus Cucumis: Hoffmannseggia Jamesii, T. andG.J 
was also gathered on this, part of the journey; several species of Psoralea , 
Pet&lostemon and Astragalus ; also Torrey’s Gaura villosa and Krameria 
lane eolot a f'Erysimum asperum, which before was not known to grow so 
far south; Polygala alba, Lygodesmia juncea. Here we also, for the first f 
time, meet with RJms trilobata, Nutt., which, farther w~est, becomes a 
very common plant. # A new Tidinum, wh|bli»I have named T. calycinum ,» 
was found in sandy soil on the Cimarron. This plant has, like the nearly £ 
allied T. teretifolium of the United States, a remarkable tenacity of life, 1 
so much so that specimens collected, pressed and “ dried,” in June, 1846, j 
when they reached me in August, 1847,14 months later, grew vigorously | 
* after being planted. 
Psoralea hypogma, Nutt., was collected near Cold spring, and Yucca an- ^ 
gustifolia, from here to Santa Fe. , 
From Cedar creek the mountainous region commences with ah eleva- 1 
tion of near A,000 feet above the Gulf, and extends to Santa Fe to about I 
7,000 feet. With the mountains we .get also to the region of the pines, 1 
and of the cacti. Dr. Wislizenus has here collected two species of Pirns , 
both of which appear to be undescribed, so that I venture to give now a | 
#short account of them. The most interesting one, on account of its use-1 
fill fruit, as^ well as its botanical associations, is the nut pine of New | 
Mexico*, (Pinon,) Pinus edulisf nearly related to the nut pine of north-1 
\Talmum calycinum, n. sp.,rhizomate erasso,*eaulibus demum ramosis; f 
foliis subteretibiis elongatis, basi triangular! productis; pedunculis elon-1 
gatis nudis; cyma bracteosa; sepalis 2 ovato-orbiculatis, basi productis, j 
cuspidatis, persistentibus; petalis fugaeibus calycembis superantibus; stain- j 
inibus sub 3d; stylo elongato, stigmatibus 3 abbreviatis. 
In.sandy soil on the Cimarron, fl. in June. Differs from T. teretifolium \ 
by its larger leaves, larger flowers, much larger persistent sepals, larger j 
fruit and* seed. Leaves 1J to 2 inches long, flowmrs 10 to 11 lines in di- 1 
ameter; capsule and seeds twice as large as in T. teretifolium . 
fPmus edulis, n. sp.—squamis turionum ovatis acutis adpressis; laci- 
ndis vagmarum abbreviatarum circiriato—revolutis, demum deciduis; foliis 
bims brevibus ngidis, curvis, tenuissime striatis, margine laevibus, supra 
concavis glaucis, subtus convexis viridibus; strobilis sessilibus erectis, 
subgloboso-conicis, squamis apice dilatato pyramidatis, inermibus; semini- 
Dus obovatis, apteris, magnis, testa tenuiore. 
Not lSrt.from the'Cimarron to Santa Fe, and probably throusbout New 
Mexico. A small tree, 10 to 2d, rarely 30 feet high; trunk S to 12 inches 
m diameter; leaves 12 to 18 lines long, and, as is the case in all other pines, 
concave on the inner or upper surface when in twos, and carinate when in 
threes, which m our species is very seldom the case. Cones about 18 
lines m diameter; speds abotit 6 lines long, and 4 in diameter;, shell 
much thinner than a hazlenut’s; kernel, when slightly baked, very pleas- 
cimeS e bv a 2 mentione **«*. been collected in atundarft and beautiful ape-. 
•Santa Fe^nrino- G^nnen collector, who has investigated the regions about 
ins the flora of Santa Fe. 
•epeate&ly be obliged to refjjer to him when speak* 
