Mitteilungen der Deutschen Dendrologischen Gesellschaft . Pseudotsuga Douglasii. Saat aus Nr. 4 Pecos (New-Mexiko) 1910. (Phot. Mai 1912.) Nr. 2r. Einige Beobachtungen aus der Baumzucht. 59. Pseudotsuga Douglasii. Saat aus Nr. 5 Madison (Montana) 1910. (Phot. Mai 1912.)

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforestsandforestry