"Galleries of the spruce-destroying beetle beneath the bark of a spruce tree." —Davison, 1906
Also known as Pseudotsuga macrocarpa. A conifer native to southern California.
Also known as Picea mariana. A species of spruce native to North America.
Also known as Picea breweriana. A species of spruce tree native to western North America.
Pictured are conifer forms: pine and spruces.
Also known as Pseudotsuga menziesii. An evergreen conifer species found in western North America.
Also known as Picea engelmannii. A species of spruce tree native to western North America.
Also known as the spotted or spruce grouse, the Canada grouse is found in the northerly latitudes of…
Illustrated is a group of surviving hemlock spruces.
The common names of picea excelsa are burgundy pitch tree and Norway spruce fir. Pictured is a fruiting…
The pine cone of a Picea parryana pine tree.
Picea smithiana is a spruce fir. The tree grows between eighty and one hundred twenty feet tall.
This illustration shows some common examples of Pinales: 5, Thuja or arbor vitae. 6, Strobilus, of Chamaecyparis…
Also known as Picea rubens. Native to North America.
Also known as Picea sitchensis. The pine cone of the largest species of spruce trees.
Also known as Pinus glabra. The pine cone of a Spruce Pine tree.
Norway spruce is the common name of Picea excelsa.
Also known as Picea glauca. A spruce tree native to the northern half of North America.