This section is from "The Horticulturist, And Journal Of Rural Art And Rural Taste", by P. Barry, A. J. Downing, J. Jay Smith, Peter B. Mead, F. W. Woodward, Henry T. Williams. Also available from Amazon: Horticulturist and Journal of Rural Art and Rural Taste.
This variety of P. excelsa, which is quite unique in its appearance, and which by its singular habit can only be somewhat related to Picea excelsa var. viminalis, was discovered in the summer of 1856, in an extensive forest, where it came up from seed accidentally.
Its very singular, nearly branchless limbs, have some similarity to Arau-caria imbricata. It was named after Mr. Hagcman, under whose care this forest is; and I planted it in my nursery, where I succeeded in propagating it extensively.
The same day and in the same forest, I was fortunate enough to discover another variety of Picea excelsa, not less interesting but of a far different character, and which will no doubt prove a great acquisition to our evergreen trees, as it has the mild, soft character of a weeping tree. I named this variety Picea excelsa, or Hartweggii; it has a graceful appearance, having distinct layers hanging down semi-globularly. - E Topf, Erfurt; in Deutsches Magazin, Stuttgard.
 
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