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Natural Variation In Abies Of The Southern Appalachians, John F. Robinson
Natural Variation In Abies Of The Southern Appalachians, John F. Robinson
Masters Theses
Determinations were made of several foliage, seed, and cone characteristics from material collected throughout the ranges of Abies fraseri in high elevations of Tennessee, North Carolina, and southern Virginia; Abies balsamea var phanerolepis in West Virginia and northern Virginia; and Abies balsamea from its southernmost distribution in Pennsylvania and southern New York.
Natural variation was investigated to determine relationships among these taxa, especially with reference to possible hybridity of A. balsamea var phanerolepis in West Virginia and northern Virginia. Much variation was found among species groups among stands within groups. Variation patterns suggested sampling from a north-south cline. Stand values …