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Range of distribution of Sickle-shaped Milk-vetch, Falcate Milk-vetch (Astragalus falcatus Lam.).

Object description Download GIS-layers

Authors:

The expert-botanists - N.I.Dzyubenko, E.A.Dzyubenko.
The GIS expert - A.N.Dzyubenko.

Date of creation:

17.09.2007

Scale:

1:20 000 000.

Accuracy of the map:

The map is based on data of a 1:13 000 000 scale map, specified according to herbarium materials.

Projection:

"Albers Equal-Area Conic Projection for USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0

Basic 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 from data of LE herbarium (1) and published sources (2), the polygons - generalized information on the species distribution from published sources.

Method of the map construction:

The data from the herbarium materials of LE, published maps of the range (Grossheim, 1952), and published data (Fedorov, Tzvelev, 1987; Shishkin, 1946; Polozhij, Malyshev, 1994; Malyshev, Peshkova, 1979) were used for constructing the range of Astragalus falcatus. The range consists of two polygons and dots. The first polygon is situated in the Caucasus, the second is confined to the Volga-Kama region, Urals and West Siberia. The species may also sporadically occur in the central and southern belts of Russia.

References:

Grossheim AA. 1952. Flora of Caucasus. 2nd ed. V.5. P.245-335. (In Russian).
Shishkin BK., ed. 1946. Flora URSS. V.12. Moscow; Leningrad. 919 p. (In Russian).
Fedorov AA., Tzvelev NN., eds. 1987. Flora of the European part of the USSR. V.6. Leningrad: Nauka. 254 p. (In Russian).
Polozhij AV., Malyshev LI., ed. 1994. Flora of Siberia. V.9. Fabaceae (Leguminosae). Novosibirsk: Nauka. 280 p. (In Russian).
Malyshev LI., Peshkova GA., eds. 1979. Flora of the Central Siberia. V.2. 506 p. (In Russian).
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.