The book Plant Life was written by author Charles a Charles Albert Hall Here you can read free online of Plant Life book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Plant Life a good or bad book?
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The Firs are divided into two genera, both of which are characterized by producing only long shoots with spirally arranged evergreen leaves, as in Picea excelsa. In the genus Picea, the bark of the tree is reddish, and the leaves, seen in trans- verse section, are quadrangular; the cones hang down- wards and the scales persist on the cones until, and even after, the seeds are liberated; but in the second genus, Abies, represented by the Silver Fir, Abies pectinata, a native of the mountains of ...South and Middle Europe, and cultivated in Britain, the bark is greyish, the leaves are flat, yet needle-like, and marked with two white lines beneath. The cones sit erect, and as in that posi- THE CONIFERS 189 tion the cone-scales would hinder seed distribution were they to persist as in Picea, when the seeds are ready they fall away to allow the seeds to be scattered without let or hindrance. The remaining genera of the Abietineae, Pinus, Cedrus, Larix, produce long and short shoots. In Larix, represented by the Larch (Larix europcea), the long shoots produce linear leaves on all sides and continue the branching; the tree is not evergreen, for the leaves fall off each year, and the short shoots arise as tufts of thirty to forty linear leaves in the axils of the leaves of the long shoots of the previous year.
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