Lxxvii. conifer.t;: pi nus. 



981 



abilis may therefore be considered as an imaginary species, or as a synonyme 

 to P. mitis. 



i 22. P. PONDERO'sA Doug. The heavy-wooded Pine. 



Identification. Douglas's specimens in the Horticultural Society's herbarium ; Lawson's Manual, 



p. 3a4. ; Lodd. Cat., ed. lS3t; ; Pin. Wob., p. -14. ; Penny Cyc, vol. 18. 

 Engravings. Pin. Wob., t. In. ; our Jig. 183.3. to our usual scale; and figs. 1830. to 1832. of the 



natural size, from the tree in the Horticultural Society's Garden, and Douglas's specimens in the 



Horticultural Society's herbarium. 



Spec. Char., ^-c. Leaves three in a sheath, much longer than the cones, 

 flexible, tortuous, with short sheaths. Crest of the anthers rounded, entire. 

 Cones ovate, refle.xed, with the apices of the scales flattened, with a raised 

 process in the middle, terminating in a conical, minute, recurved spine, 

 slightly quadrangular. Buds, in Douglas's specimen, |- in. 

 long, and f in. broad ; cylindrical, witli straight sides, rounded 

 like a dome at the extremity, but with a prominent blunt 

 point ; dark brown, and covered with resin. Buds, on the 

 living tree in the Horticultural Society's Garden (see Jig. 

 1830.), from 1 in, to l|in. long, and from f in. to H in. broad ; 

 smooth, cylindrical, with a long point ; reddish brown, and 

 covered with a fine white bloom, con- 

 sisting of fine particles of resin, sur- 

 rounded by two or more smaller buds. 

 Leaves disposed in parallel spirals ; in 

 Douglas's specimen (see Jig. 1832.), 

 1830. from 9 in. to 1 1 in. long ; 3 in a sheath, 



which is from ^ in. to 1 in. in length, 

 with numerous fine rings ; scales of the leaves per- 

 sistent on the wood, even of two years' or three 

 years' growth. Leaves, on the living plant, from 

 7 in. to 9 in. long. The cone (see Jig. 1831.), in 



Douglas's specimen, 

 is deformed, and very 

 imperfectly deve- 

 loped ; it is only 3 in. 

 long, and ^ in. broad. 

 The scales are termi- 

 nated in flattened pro- 

 cesses, scarcely ribbed 

 in any direction. In 

 the centre of the pro- 

 cess is a protuber- 

 ance, large in propor- 

 tion to the scale, 

 which terminates in a 

 sharp prickle, point- 

 ing outwards. Scale 

 1 in. long, and f in. 

 broad ; dark brown. 

 Seed rA- in. Ions, and 



1 b i-' 



|- in. broad ; dark 



brown, with the wing 



nearly 1 in. in length, 



and f in. in breadth ; 



wings of a yellowish 



brown. A lofty tree. 



North America, on 

 the north-west coast. Height 50 ft. to 100 ft. Introduced in 1826. it 

 has not vet flowered in England. 



^ 3r 3 



1831. P. ponderosa. 



ISS'-i. P. pondeidsiL. 



