DOUGLAS FIR 197 



long x 20 25 mm. broad, passing through green to pale 

 brown. Barren scales very short, toothed and ciliate. 



[Picea alba, P. nigra, with small cones, arid a few others 

 are planted.] 



** Needles not 4-angled, but flat, linear; 

 carpellary scales with points projecting 

 beyond the ovuliferous scales; seed- wings 

 not separable. 



t Cone ellipsoid, tapering at both ends ; carpel- 

 lary scales very evident, 3-pronged, exserted ; 

 pollen devoid of air-sacs ; leaves linear, 

 obtuse, about 20 30 mm. long, crowded, 

 curved forwards and hardly pseudo-dis- 

 tichous. 



Pseudotsuga Douglasii, Carr. Douglas Fir (Fig. 54). 

 Large pyramidal tree with dense light green foliage. 

 Cones about 50 90 mm., falling as a whole ; scales entire, 

 barren scales lyrate with a long median and two short 

 lateral points. Bark thick, reddish-brown, with deep 

 irregular fissures. 



Male flowers long-ovoid, about half as long as the 

 needles, crowded singly in the leaf-axils. 



Female flower small, isolated or grouped at the tips of 

 short shoots. 



Mature cones pendent, 5 9 x 3 3 f 5 cm. Scales 

 broad, linear and leaf-like, toothed towards the bifid apex, 

 the midrib prolonged into a long subulate process,>giving 

 the whole a trident-like appearance as it projects beyond 

 the rhomboid pale brown ovuliferous scale. 



tt Cone cylindroid -oblong, rounded at each 

 end, and erect ; with numerous entire 

 scales, from between which the points of 

 the barren scales protrude and are reflexed ; 



