Larix, (page [39]).—There are 10 known species of Larches found principally in the colder regions of the northern hemisphere. Three of these are indigenous to North America and one extends as far south as the northern part of West Virginia. Unlike most of the members of the Pine family the Larches shed their leaves each fall. The European Larch (Larix decidua, Mill.) is frequently planted for ornamental purposes. It can be distinguished from the native species by its much larger cones.

Picea, (page [41]).—Eight of the 18 or 20 known species of Spruces are native to North America and one species is found in West Virginia. The 2 introduced Spruces most commonly planted are Norway Spruce (Picea Abies, (L.) Karst.) and Colorado Blue Spruce (Picea pungens, Engl.). The Norway Spruce can be distinguished from our native species by its much larger cones, and the Colorado Blue Spruce by its blue-green foliage.

Tsuga, (page [43]).—This genus comprises 8 species, 4 of which grow in Asia and 4 in North America. One of the 2 Eastern Hemlocks is common in West Virginia, the other (Tsuga caroliniana, Engl.) grows from the mountains of Virginia south to Georgia.

Abies, (page [45]).—The 25 known species of Firs are found principally in cold and temperate regions. Of the 10 species in North America only 2 are found east of the Rocky Mountains and 1 in West Virginia. The other Eastern Fir is Abies balsamea, (L.) Mill, which does not extend southward into this State.

Thuja, (page [47]).—Four species of Arbor Vitae are known, 2 of which are native to North America, one in the West and the other in the East. The limited distribution in West Virginia of the latter is given on the page describing this species.

Juniperus, (page [49]).—This is a large genus comprising 40 trees and shrubs. Of these, 16 species are found in North America. Red Cedar, described in this bulletin, is common in West Virginia and Juniperus communis, (L.) has been reported from Wood, Mineral and Fayette counties.

Other members of the Pine family which may be seen occasionally planted on lawns in West Virginia are the following:

White Cedar (Chamaecyparis thyoides, (L.) B.S.P.)

Bald Cypress (Taxodium distichum, Rich.)