Relatives
Range of distribution of Chalk Medick (Medicago cretacea M.Bieb.).
Object description Download GIS-layers
Authors:
The expert-botanists - N.I.Dzyubenko, E.A.Dzyubenko.The GIS expert - A.N.Dzyubenko.
Date of creation:
17.03.2007Scale:
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, 0Basic contents:
The map is a vector file consisting of 1 basic and 2 subject layers. The species range is represented by dots and polygons.Accuracy of the qualifier:
The dots represent information on the species localities: 1 - reliable data from herbarium and published sources; polygon (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, a published map of a part of the species range (Grossheim, 1952) and published data (Grossheim, 1945; Vassilchenko, 1987; Lesins, Lesins, 1979) were used for constructing the range of Medicago cretacea. The species occurs rather locally on dry calcareous mountain slopes of the southeastern Crimea and the northern Black Sea Coast of the Caucasus. Endemic. The range consists of two polygons (Crimean and Caucasian), which contain most of the dots, and a remote dot which represents a solitary species locality.References:
Grossheim AA. 1945. Fenugreek - Trigonella L. In: Shishkin BK., ed. Flora URSS. V.11. P.102-129. (In Russian).Grossheim AA. 1952. Flora of Caucasus. 2nd ed. V.5. P.168-177. (In Russian).
Vassilchenko IT. 1987. Krymka - Crimea Vass. In: Fedorov AA., Tzvelev NN., eds. Flora of the European part of the USSR. V.6. P.187. (In Russian).
Lesins KA., Lesins I. 1979. Genus Medicago (Leguminosae). A Taxogenetic Study. 228 p.
Herbarium specimens of V.L.Komarov Botanical institute [LE], St.Petersburg, Russia.