72 PINES : SILVER FIR 



* Cones cylindroid, pendent, slightly curved, 

 15 25 cm. long, much longer than broad; 

 seed-wing 3 4 times as long as marbled 

 seed. 



t Cone 15 18cm. long; seed 5 7mm. long; 

 seed-wing 25 mm. long, oblong-oblique, with 

 nearly parallel edges. 



Pinus Strobus, L. Weymouth Pine (Fig. 74). 



[Pinus monticola has a somewhat larger cone, stiffer 



and less serrulate leaves, and smaller seeds and wings than 



P. Strobus.] 



tt Cone 18 24 cm. long; seed 7 8 mm. long; 

 seed-wing 30 40 mm. long, wider just 

 below middle. 



Pinus excelsa, Wall. Himalayan Pine. 



** Cone ovoid-obtuse, erect, 8 10 cm. long, 

 and seeds 8 12 mm. long with a very 

 short broad wing projecting only 2 4 mm. 



Pinus Gernbra, L. Arolla Pine (Fig. 75). 



({3) Apophysis and umbo wanting; scales thin 

 and rounded; leaves not in twos, threes or 

 fives. 



* Cones cylindroid, erect; the rounded scales 

 falling when mature ; seed triangular, with 

 oleo-resinous coats, wing inseparable. 



Abies pectinata, DC. Silver Fir (Fig. 76). Cone 

 18 32 cm. long x 5 6 cm. wide. The barren scale pro- 

 jects beyond the ovuliferous scale and ends in a sharply 

 reflexed mucro. Seeds 10 12 mm. long, triangular, with 

 a weak, easily crushed shell abounding in balsam. Wing 

 somewhat obliquely rectangular 20 22 x 5 7 mm., and 

 is with difficulty removable. Leaves linear, isolated, 

 pectinate in arrangement. 



