The cypress and juniper trees of the Rocky Mountain region . Bui. 207, U. S. Dept. of Agricultur Plate CUPRESSUS ARIZONICA. a, b, Different forms of old cones; c, male flower buds (in autumn); d, seedling three months old (one-half natural size). CYPRESS AND JUNIPER TREES OF ROCKY MOUNTAIN REGION. 5 margins, while in Chamsecyparis the margins of the leaves are entireor smooth. In Cupressus the leaves of each seasons growth remainon the trees from three to four years. The minute flowers, whichappear in early spring on the ends of the twigs, are inconspicuous,especially the female flowers.

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The cypress and juniper trees of the Rocky Mountain region . Bui. 207, U. S. Dept. of Agricultur Plate CUPRESSUS ARIZONICA. a, b, Different forms of old cones; c, male flower buds (in autumn); d, seedling three months old (one-half natural size). CYPRESS AND JUNIPER TREES OF ROCKY MOUNTAIN REGION. 5 margins, while in Chamsecyparis the margins of the leaves are entireor smooth. In Cupressus the leaves of each seasons growth remainon the trees from three to four years. The minute flowers, whichappear in early spring on the ends of the twigs, are inconspicuous,especially the female flowers. The male flowers, which bear pollenonly, and the female flowers, which produce cones and seeds, areborne on different twigs of the same tree. The cones mature at theend of the second season,1 and bear about 15 or 20 seeds under eachfertile cone scale, instead of only 4 or 5 seeds, as in the case of Chamse-cyparis. Seeds of native Cupressus differ fundamentally from thoseof Chamsecyparis in being without thin, membranous wings. Thecones of Cupressus are strongly attached to the branches and remainon the

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Keywords: ., bookcentury1900, bookdecade1910, booksubject, booksubjectconifers