190 HIMALAYAN PINE 



Female flowers singly or in pairs, rarely more, some- 

 what longer than the males; scales horizontal, thick, 

 yellowish-green with red membranous margins. 



After fertilisation the If flowers stand oblique and by 

 the winter pass to brown cones, up to 2 cm. long on stalks 

 about 1 cm. long. Mature cone stalked and pendent, 

 10 15 cm. long; cylindroid-fusiform, acute, somewhat 

 curved, passing from dark violet to brown. 



ft Cones about 150170 (140220) mm. long, 

 singly or in twos or threes, pale purple when 

 young; needles 125150 (100170) mm., 

 greyish-green, very slender; cones rosy, 

 16 18 mm. long. 



P. excelsa, Wall. Himalayan Pine. The Himalayan 

 Pine, with greyish-brown scaly bark, is difficult to dis- 

 tinguish from P. Strobus, except by the longer needles 

 and cones. 



Male flowers 16 18 mm. long, narrow-cylindroid, 

 curved and ascending, yellow. Cones stalked, opposite in 

 pairs or pseudo-whorls of 4, rarely single ; erect, passing to 

 pendent, conoid-cylindroid, obtuse, curved, and 14 17 

 x 3'5 7 cm. at maturity and pale brown with resinous 

 drops. 



[The difficulty of distinguishing the above species 

 is enhanced because P. monticola, of similar habit, has 

 cones (150200 mm.) and leaves (100120 mm.) often 

 midway between it and P. Strobus in length. The mag- 

 nificent P. Lambertiana, a tree of 300 feet in Oregon, 

 has cones up to 500 mm. and more in length, and is 

 occasionally seen in collections.] 



(ii) Male cones isolated ; the scales of the 

 ? cone not thickened into an apophysis; 

 seed-wings not separable, or if so not 



