VI. Taxaceae. Yew Family

Trees or shrubs; sparingly resinous; leaves evergreen or deciduous, linear, spreading in two ranks; flowers dioecious, or rarely monoecious, axillary, solitary; fruit a bony-coated seed, or rarely a cone.

I. Taxus. (Tourn.) L.

1. T. brevifolia. Nutt. Western Yew.

VII. Pinaceae. Pine Family

Trees or shrubs, mostly evergreen; leaves needle-shaped, entire; flowers monoecious or rarely dioecious, borne in the form of scaly catkins of which the fertile ones become berry-like or cones; juice resinous.

I. Pinus. (Tourn.) L.

1. P. albicaulis. Engelm. White-bark Pine.

2. P. monticola. Dougl. Mountain Pine.

3. P. ponderosa. Dougl. Bull Pine.

4. P. contorta var. Murrayana. Engelm. Lodge Pole Pine. II. Larix. (Tourn.) Adans.

1. Lyallii. Parl. Lyall's Larch.

III. Picea. Link.

1. P. canadensis. (Mill.) Bsp. White Spruce.

2. P. Engelmanni. Parry. Engelmann's Spruce.

IV. Abies. (Tourn.) Hill.

1. A. lasiocarpa. (Hook.) Nutt. Balsam Fir. V. Tsuga. (Endl.) Carr.

1. T. heterophylla. (Raf.) Sarg. Western Hemlock.

2. T. Mertensiana. (Bong.) Carr. Mountain Hemlock. VI. Pseudotsuga. Carr.

1. P. taxifolia. Britton. Douglas Fir. VII. Thuya. L.

1. T. plicata. Donn. Red Cedar. VIII. Juniperus. (Tourn.) L.

1. J. scopulorum. Sarg. Rocky Mountain Juniper.

2. J. horizontalis. Moench. Creeping Juniper.

3. J. communis var. montana. Ait. Alpine Juniper.