108 [26 ] 
cones, resemble the common white pine of the north, but the cones» are 
two or three times as large, not to speak of the other differences. » It on} 
grows on the highest mountains of this — of a ed feet olevgs 
tion, and attains the height of 100 to 130 feet 
_ Pinus macrephylla,** another inhabitant of the higher ‘mountains of 
Ghikgshass: is more common than the last; like it, it closely resembles 
well-known oan of the United States, P. australis, from which it aif 
bark, bearing in November and December red edible pion If it is at 
all distinct from. A. Menziesii, Pursh, of the northwest coast, which it 
closely resembles, it ought, from the color of its bark, eae a name of 
to 130 feet mehs Sheaths 6 es long, very deciduous, leaves 2 ‘to 34, 
mostly 3 inches long; cone about 10 inches in leng th, very a 
This species forms with Pinus strobus and Pinus flevilis a peculiar s 
tion, distinguished by their 5 leaves, and their cylindric pendulous or 
rose cones; the leaves of P. strobus are the most slender, concave on 
back, and strongly serrate; those of P. strobiformis are somewhat more 
rigid, convex on the back, and ey. aig ; those of P. flerilts are still 
2+ Pinus macrophylla, 0. Sp., Goin s turionum longe acuminatis, fim- 
briato laceris, squarrosis, tone vaginis elongatis, adpressis, lace- 
tis; foliis ad apicem ramulorum congestis ternis, quaternis (rarius quinis) 
longissimis, margine carinaque serrulatis, utrumque as ro-striatis, sub- 
glaucis; strobilis “ovato-conicis; sqamis tubereulo conico, apice spinifero, 
recurvo instructis; seminibus parvis, alatis 
‘Common on the higher mountains of Gosiniinchi 70 to 80 feet high; 
Sheaths415 to 20 lines long; leaves 13 to 15 inches long in the specimens 
before me; in fours as well as in threes; rarely in fives; cone 4} inches 
long. Exidently near P. australis, Mich., but well distinguished by = 
characters enumerated. . 
26 Pinus Chihuahuana, n. sp., squamis turionum acuminatis, adpressis; 
vaginis adpressis, elongatis, laceris, deciduis; foliis ternis (rare quaternis) 
supra glaucis, subtus virescentibus, leviter. striatis, margine Sesame 
one strobilis ovatis, a abbreviatis; ‘squamis transverse ovatis, 
The common pine of the mountains of Chihuahua, at an elevation. 
about 7,000 feet; a tree of only 30 to 50 feet in height; leaves ret 
inches long; serrulate on the i margin, but with pent ages cca sone 
in the specimen before me 1} inch long. ~ pd 
