Altitudinal Races of Pinus ponderosa Confirmed

By Callaham R. Z.   Metcalf Woodbridge  

Journal of Forestry, Vol. 57, Iss. 7, 1959-07 ,pp. : 500-502

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Twenty-Year Response of Ponderosa Pine (Pinus ponderosa Laws.) to Treatment with Hexazinone in Northeastern Oregon

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One-hundred-year foliage comparison of Pinus ponderosa and Pinus sylvestris under dry growing conditions in Brandenburg, Germany

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Variations in Copper, Boron, and Manganese in Leaves of Pinus ponderosa

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