. Nature-study; a manual for teachers and students. Nature study. TREES 365 lows and birches, extend far northward. Mahogany, teak, and the palms flourish only in the tropies. Oranges and lemons thrive in California, but not in Minnesota. Each species has a certain range to which it is limited principally by the climate. On the borders of these ranges the trees do not thrive so well. In high altitudes, or far northern lati-. FlG. 15O. Cottonwoods, Soft Maples, Boxelders. Elms, and Willows Like to Grow Along the Rivers. Their Seeds are Carried by Wind and Water. tudes, the trees are stunted in
. Nature-study; a manual for teachers and students. Nature study. TREES 365 lows and birches, extend far northward. Mahogany, teak, and the palms flourish only in the tropies. Oranges and lemons thrive in California, but not in Minnesota. Each species has a certain range to which it is limited principally by the climate. On the borders of these ranges the trees do not thrive so well. In high altitudes, or far northern lati-. FlG. 15O. Cottonwoods, Soft Maples, Boxelders. Elms, and Willows Like to Grow Along the Rivers. Their Seeds are Carried by Wind and Water. tudes, the trees are stunted in their growth, and finally a limit is reached beyond which trees do not grow—the tree line. Moisture is probably the most potent condition de- termining the distribution of trees. Some trees, like the cypress of the southern swamps and our northern tamaracks, can grow only where they can stand with tlieir feet in the water or water-soaked soil. In northern Minnesota one may. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Holtz, Frederick Leopold, 1870-. New York, C. Scribner's Sons
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