Relatives

Range of distribution of Large Hop Trefoil, Golden Clover (Trifolium aureum Poll.).

Object description Download GIS-layers

Authors:

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

Date of creation:

17.03.2007

Scale:

1:20 000 000.

Accuracy of the map:

The map is based on data of 1:13 000 000, 1:25 000 000, 1:80 000 000 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; 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 and WIR, published maps of the species distribution (Grossheim, 1952; Hulten, Fries, 1986), and published data were used for constructing the range of Trifolium aureum. Our view on the species distribution in Russia and adjacent states mainly agrees with the concept of the species distribution of Hulten and Fries (1986). We have somewhat extended the polygon borders eastward on the basis of herbarium and published data (Bobrov, 1945; Polozhij, Malyshev, 1994). The range consists of the basic polygon, a small polygon in the Far East, dots within the polygons and sepatate dots to indicate the species distribution outside the polygons. The polygon cited by Hulten and Fries (1986) in southwestern Turkmenistan is not confirmed by LE herbarium materials.

References:

Brezhnev DD., Korovina ON. 1981. Wild relatives of cultivated plants of the flora of the USSR. Leningrad: Kolos. 376 p. (In Russian).
Grossheim AA. 1952. Flora of Caucasus. 2nd ed. V.5. P.194-221. (In Russian).
Minjaev NA., ed. 1981. Manual of Higher Plants of the Northwestern European Part of RSFSR. Leningrad. 376 p.
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).
Pavlov NV., ed. 1961. Flora of Kazakhstan. V.2. Alma-Ata. 515 p. (In Russian).
Polozhij AV., Malyshev LI., ed. 1994. Flora of Siberia. Fabaceae (Leguminosae). V. 9. (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.
Herbarium specimens of V.L.Komarov Botanical Institute [LE], N.I.Vavilov All-Russian Institute of Plant Industry [WIR] (all in 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.