Engelmann's P.
strobiformis. Sargent's P. strobiformis, illustrated in the Silva of
North America, is the form of this species known as var. reflexa of
Engelmann.

Plate IX.

Fig. 93, Two cones and seed. Fig. 94, Leaf-fascicle. Fig. 95,
Magnified leaf-section.

5. PINUS ARMANDI

1884 P. Armandi Franchet in Nouv. Arch. Mus. Paris, ser. 2,
vii. 95, 96, t. 12.
1898 P. scipioniformis Masters in Bull. Herb. Boiss. vi. 270.
1903 P. koraiensis Masters in Gard. Chron. ser. 3, xxxiii. 34,
ff. 18, 19 (not Siebold & Zuccarini).
1908 P. Mastersiana Hayata in Gard. Chron. ser. 3, xliii, 194.

Spring-shoots glabrous; branches and most of the trunk covered with a
smooth gray cortex. Leaves from 8 to 15 cm. long, serrulate; stomata
ventral only; resin-ducts external, external and medial, or medial, all
three conditions sometimes occurring in leaves of the same branchlet.
Cones from 6 to 20 cm. in length, pendent on peduncles of various
lengths, the peduncle often remaining on the tree after the fall of the
cone; apophyses fulvous brown, dull or sublustrous, the margin rounded
or tapering to an acute apex, sometimes a little prolonged and reflexed,
the umbo inconspicuous.

A tree of the mountains of central, southern and western China with an
outlying station on the Island of Formosa. Recently planted in Europe
and America, it has so far proved hardy. The nuts are gathered for
food and some use is made of the wood.

The glabrous shoots of P. Armandi distinguish it from P. flexilis and
P. koraiensis. From the latter it is also distinct in its dehiscent
cone and in its seed. The section of its leaf, with dorsal ducts often
in two positions, is peculiar to this species among Soft Pines.

Plate IX.

Fig. 96, Two cones and seed. Fig. 97, Leaf-fascicle. Figs. 98, 99,
Magnified sections of three leaves.

[Illustration: PLATE IX. P. FLEXILIS (93-95), ARMANDI (96-99)]

=III. STROBI=

Seed with a long effective wing adnate to the nut.

The base of the seed-wing corresponds to the marginal spermoderm of the
Flexiles but is prolonged into an effective adnate wing. This form of
wing appears again in the species Balfouriana and in the group
Longifoliae.

Cones very long, usually exceeding 25 cm.
Cone-scales prolonged and reflexed 6. ayacahuite.
Cone-scales appressed 7. Lambertia