. The families of flowering plants. Plants; Phanerogams. FAMILIES OF FLOWERING PLANTS. 11 ranee of the fir-balsam {AUes halsamm) is due. Fig. 7 illustrates the cones and cone-scales of several native spruces, while Fig. 8 affords a view of a northern tamarack Fig. 7.—Branch, oonps ana cone-scales of various spruces. (From Bull. , Vermont Agrio. Exp. Station, by Miss Anna Loaned by the Univ of Vermont). Tribe Taxodieae,—Seven genera, each with one or two species, all natives of eastern Asia except Sequoia^ with 2 Californian species, a'lid Taxodi/um, the bald cypress, with on
. The families of flowering plants. Plants; Phanerogams. FAMILIES OF FLOWERING PLANTS. 11 ranee of the fir-balsam {AUes halsamm) is due. Fig. 7 illustrates the cones and cone-scales of several native spruces, while Fig. 8 affords a view of a northern tamarack Fig. 7.—Branch, oonps ana cone-scales of various spruces. (From Bull. , Vermont Agrio. Exp. Station, by Miss Anna Loaned by the Univ of Vermont). Tribe Taxodieae,—Seven genera, each with one or two species, all natives of eastern Asia except Sequoia^ with 2 Californian species, a'lid Taxodi/um, the bald cypress, with one in Mexico and one in the eastern United States. The members of this tribe furnish conspicuous ex- amples of the vanishing type of gymtiospermous vegetation to which we have already made reference (See Supplement, page 4). The stately Sequoias, monarchs of the Californian forest, are probably doomed to ultimate extinction, though the redwood (x?. sempervirens) is much more abundant than the giant sequoia {8. Washingtoniana), which exists now only in a few carefully preserved groves. The enormous dimensions attained by these trees are well shown in Fig. 1 of the Supplement. The bald cypress {Taxodiiim distichuni) is familiar to every one who has made a pilgrimage to the Dismal Swamp of Vir- ginia or to any of the large tidal swamps along the southeastern At- lantic coast. Though often grown as a shade tree in southern cities it needs a wet soil in order to thrive, and in such situations it usually develops the remarkable "knees" to a wonderful extent. These knees are woody projections thrown up around the base of the trunk, coni- cal in outline, with a rounded apex, projecting sometimes a foot or more above the surface of the swamp. The bole of the trunk itself is often enormously enlarged, serving as a buttress to anchor the tree firmly in place. A similar enlargement may be seen in many other. Please note that these images are extracted from scanned page images
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1900
