Mitteilungen der Deutschen Dendrologischen Gesellschaft . Pseudotsuga Douglasii. Saat aus Nr. 6 Bitterrpot (Montana) 1910. (Phot. Mai 1912.) 6o Fr. Graf von Berg: Pseudotsuga Douglasii. Saat aus Xr. 7 Lola (Montana) 1910. (Phot. Mai 1912.)

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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforestsandforestry