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Range of distribution of Common Comfrey (Symphytum officinale M.B.).
Object description Download GIS-layers
Authors:
The expert-botanists - N.I.Dzyubenko, E.A.Dzyubenko.The GIS expert - A.N.Dzyubenko.
Date of creation:
17.09.2007Scale:
1:20 000 000.Accuracy of the map:
The map is based on data of 1:13 000 000 - 1:60 000 000 scale maps, specified according to herbarium materials.Projection:
"Albers Equal-Area Conic Projection for USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0Basic contents:
The map is a vector file consisting of 1 basic and 2 subject layers. The species range is represented by polygons and dots.Accuracy of the qualifier:
The dots represent information on the species localities: 1 - reliable data according to herbarium and published sources; the polygons (1) - generalized information on the species distribution from published sources and herbarium specimens.Method of the map construction:
The data from the herbarium materials of LE, published maps of the range (Meusel et al., 1965) and a part of the range (Grossheim, 1967) were used for constructing the range of Symphytum officinale. The final range of the species consists of two polygons and dots. The borders of the main polygon are drawn after Meusel et al. (1965). The species occurs throughout the European part of the former USSR (except for the north), but is missing in Crimea, Stavropol Territory, Astrakhan Region. The second polygon stretches like a narrow band through the Ciscaucasia, where the species occurs in the lower montane zone.References:
Grossheim AA. 1967. Flora of Caucasus. 2nd ed. V.7. P.263-264. (In Russian).Medvedev PF., Smetannikova AI. 1981. Forage plants of European part of the USSR. Meusel H. et al. 1965. Vergleichende Chorologie der Zentraleuropaischen Flora. Jena. 583 S.
Herbarium specimens of V.L.Komarov Botanical Institute [LE], St.Petersburg, Russia.
Rights and copyrights:
The copyrights of the map and descriptions are held by their authors.The copyright of the photo is held by E.A.Dzyubenko.