Reconnaissance On the Upper Skeena River Between Hazelton and the Groundhog Coal - Field, British Columbia

1912 ◽  
Author(s):  
G S Malloch
2014 ◽  
Vol 34 (6) ◽  
pp. 1167-1170 ◽  
Author(s):  
Michael H. H. Price ◽  
Andrew G. J. Rosenberger ◽  
Greg G. Taylor ◽  
Jack A. Stanford

1968 ◽  
Vol 46 (6) ◽  
pp. 787-798 ◽  
Author(s):  
R. Daubenmire

Mass collections of Picea sitchensis, and hybrids, extending from Haines, Alaska, to northern California have been studied with respect to morphology of the ovuliferous cones, twigs, and needles. The Pleistocene history of the species has been reviewed. A north–south gradient occurs in size of cone, length–width ratios of cone scales, sterigma angle, and phyllotaxy. The gradient is probably clinal and appears unaffected by the northerly three-fourths of the species range being in glaciated territory where Pleistocene survival, on nunataks, is suggested by the data. Collections along two sections of the Skeena River in British Columbia are interpreted as hybrid P. sitchensis × P. glauca populations backcrossed with the nearest one of the two parents, i.e., with P. sitchensis near the coast and P. glauca farther inland. Insular populations tend to show less variability in length–width ratios of the ovuliferous scales than do mainland populations.


2014 ◽  
Vol 34 (6) ◽  
pp. 1171-1176 ◽  
Author(s):  
Terry D. Beacham ◽  
Steven Cox-Rogers ◽  
Cathy MacConnachie ◽  
Brenda McIntosh ◽  
Colin G. Wallace

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