30 GENUS ^ PINUS 



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 refiexed, the umbo incon- 

 spicuous. 



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. 



m. 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. Lambertiana. 



Cones less than 25 cm. long. 



Cone-scales prominently convex. 



Leaves less than 7 cm. long 8. parviflora. 



Leaves 9-12 cm. long 9. pence. 



Leaves 12-18 cm. long 10. excelsa. 



Cone-scales thin, conforming to the surface of the cone. 



Cone relatively longer, its phyllotaxis ^ 11. monticola. 



Cone relatively shorter, its phyllotaxis -j^ 12. strobus. 



6. PINUS AYACAHUITE 



1838 P. AYACAHUITE Ehrcuberg in Linnaea, xii. 492. 



1848 P. STROBiFORMis Engelmaun in Wislizenus, Tour Mex. 102. 



1857 P. Veitchii Roezl, Cat. Graines Conif. Mex. 32. 



1858 P. BoNAPARTEA Roezl in Gard. Chron. 358. 

 1858 P. LouDONiANA Gordon, Pinet. 230. 



Spring-shoots glabrous or pubescent. Leaves from 10 to 20 cm. long, serrulate, their stomata 

 ventral only, their resin-ducts external, often numerous. Cones from 25 to 45 cm. long, pendent on 

 long stalks, subcylindrical or tapering, often curved; apophyses pale nut-brown, dull or sub-lustrous, 

 varying much in thickness, prolonged in various degrees, the prolongations patulous, reflexed, 



