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Range of distribution of Chestnut Clover, Maroon Clover (Trifolium spadiceum L.).

Object description Download GIS-layers

Authors:

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

Date of creation:

17.06.2007

Scale:

1:20 000 000.

Accuracy of the map:

The map is based on data of 1:13 000 000, 1:25 000 000, 1:60 000 000, 1:80 000 000 scale maps, specified according to herbarium materials.

Projection:

"Albers Equal-Area Conic Projection for USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 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: 1 - reliable data from 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 data (Bobrov, 1945, 1987; Roskov et al., 2005), published maps of the species range (Meusel et al., 1965; Hulten, Fries, 1986) and of the range parts (Grossheim, 1952; Polozhij, Malyshev, 1994), were used for constructing the range of Trifolium spadiceum. Our view on the species distribution in Russia and adjacent states mainly agrees with the treatment of the species distribution by Meusel et al. (1965) and Hulten, Fries (1986). The range consists of two polygons and dots. The larger polygon embraces the European part of the former USSR (except for its southern part) and Urals. The second polygon covers the Caucasus. Dots beyond the polygon borders represent specific localities of the species.

References:

Grossheim AA. 1952. Flora of Caucasus. 2nd ed. V.5. P.194-221. (In Russian).
Bobrov EG. 1987. Clover - Trifolium L. In: Fedorov AA., Tzvelev NN., eds. Flora of the European part of the USSR. V.6. P.195-208. (In Russian).
Bobrov EG. 1945. Clover - Trifolium L. In: Shishkin BK., ed. Flora URSS. V.11. P.189-261. (In Russian).
Hulten E., Fries M. 1986. Atlas of North European vascular plants north of the Tropic of Cancer. V.1-3. Konigstein: Koeltz Scientific Books.
Meusel H. et al. 1965. Vergleichende Chorologie der Zentraleuropaischen Flora. Jena. 583 S.
Roskov YR. et al. 2005. ILDIS World Database of Legumes. [Online] Available at: http://www.ildis.org/LegumeWeb?sciname=Trifolium%20spadiceum .
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.