. Plant succession; an analysis of the development of vegetation. Plant ecology. Fig. 49.—^Bisect of sandhills mixed association in eastern Colo- rado, a, CalamovUfa longifolia; h, Artemisia filifolia; e, An- dropogon scopanus; d, A. hallii; e, Ipomoea leptophyUa; f, Aristida purpurea; g. Boutdoua hirsuta. After FiG. 50.—Bisect of the Bulhilis-Bouteloua-poion in eastern Colo- rado, a, Bovteloua oligostachya; b, BulbUis dactyloides. After Shantz. The migration circle.—The migration circle (Clements, 1905:182; 1907:212), or migrarc, is designed to make possible the exact analysis of mig
. Plant succession; an analysis of the development of vegetation. Plant ecology. Fig. 49.—^Bisect of sandhills mixed association in eastern Colo- rado, a, CalamovUfa longifolia; h, Artemisia filifolia; e, An- dropogon scopanus; d, A. hallii; e, Ipomoea leptophyUa; f, Aristida purpurea; g. Boutdoua hirsuta. After FiG. 50.—Bisect of the Bulhilis-Bouteloua-poion in eastern Colo- rado, a, Bovteloua oligostachya; b, BulbUis dactyloides. After Shantz. The migration circle.—The migration circle (Clements, 1905:182; 1907:212), or migrarc, is designed to make possible the exact analysis of migration, es- pecially without reference to ecesis. Practically all studies of migration have. 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 Clements, Frederic E. (Frederic Edward), 1874-1945. Washington, Carnegie Institution of Washington
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