7 18 The Trees of Great Britain and Ireland 



1 8. Abies sac halinensis, Masters. Saghalien, Yezo, Kurile Isles. See p. 760. 



Leaves long and slender, up to if inch, uniform in width, with a rounded and 

 bifid apex, white beneath, seven to eight lines in each stomatic band. 

 Shoots with prominent pulvini, and a dense short pubescence confined to 

 the grooves. Buds small, globose, resinous. 



19. Abies sibirica, Ledebour. N. E. Russia, Siberia, Turkestan. See p. 758. 



Leaves long and slender, up to if inch, uniform in width ; apex rounded and 

 either slightly bifid or entire ; four to five lines in each stomatic band 

 beneath. Shoots ashy grey, quite smooth, with a scattered minute 

 pubescence. Buds small, globose, resinous. 



IV. Leaves on lateral branches not pectinate above; those in the middle line 



covering the branchlet, and curving upwards after being oppressed to the 

 shoot for some distance at their base. The leaves are in two lateral sets on 

 the lower side of the branchlet. Resin-canals marginal. 



20. Abies nobilis, Lindley. Washington, Oregon, California. See p. 786. 



Leaves above closely appressed by their bases to the branchlet, which they 

 completely conceal ; about 1 inch long, entire at the apex, flattened, grooved 

 on the upper surface in the middle line ; stomata usually present on both 

 surfaces. Shoots with a dense, short brown pubescence. Terminal buds 

 girt at the base by a ring of acute or subulately-pointed pubescent scales. 



21. Abies magnifca, Murray. Oregon, California. Seep. 792. 



Leaves above appressed at their bases, for a short distance only, to the 

 branchlet, which they do not completely conceal ; longer than in A. nobilis, 

 up to if inch, entire at the apex, quadrangular in section, not grooved on 

 the upper surface ; stomata always present on both surfaces. Shoots and 

 buds as in A. nobilis. 



V. Leaves on lateral branches arranged in two ways, which are often observable on 



the same tree, and depend upon the vigour of the shoots. 



22. Abies cilicica, Carriere. Asia Minor. See p. 744. 



Leaves either (A) pectinate above with a V-shaped depression between the 

 lateral sets, or (B) with the median leaves above crowded and covering the 

 branchlet, as in A. Nordmanniana. The leaves are slender, up to \\ inch 

 long, not conspicuously white below, slightly bifid at the rounded or acute 

 apex ; resin-canals marginal. Shoots smooth, with scattered short erect 

 pubescence. Buds small, ovoid, non-resinous. 



Vigorous shoots of this species resemble a weak A. Nordmanniana ; but with 

 the leaves shorter, more slender, and less white beneath, the buds being 

 much smaller. 



23. A. numidica, De Lannoy. Algeria. See p. 737. 



Leaves either (A) pectinate above with a V-shaped depression ; or (B) 

 crowded and covering the upper side of the branchlet, but different from 



