Fig. 155, Cone. Fig. 156, Cone. Fig. 157, Leaf-fascicle. Fig. 158, Magnified leaf-section. Fig. 159, Tree at Ferraria de Tula.
VIII. LONGIFOLIAE
Seed-wing adnate to the nut. Leaves long, in fascicles of 3, the sheath persistent.
| Apophysis of the cone prolonged and reflexed | 22. longifolia. |
| Apophysis of the cone low-pyramidal | 23. canariensis. |
22. PINUS LONGIFOLIA
- 1803 P. longifolia Roxburgh ex Lambert, Gen. Pin. i. 29, t. 21.
- 1897 P. Roxburghii Sargent, Silva N. Am. xi. 9.
Spring-shoots uninodal. Leaves in fascicles of 3, the sheath persistent, from 20 to 30 cm. long; resin-ducts external, the hypoderm often in large masses, some or all of the endoderm cells with thick outer walls. Cones from 10 to 17 cm. long, short-pedunculate, ovoid-conic; apophyses lustrous brown-ochre or fuscous brown, elevated into thick, often reflexed, beaks with obtuse mutic umbos; seeds with large nuts and adnate striated dark gray or fuscous brown wings.