. The continental element in the flora of south Sweden. Botany -- Sweden. THE CONTINENTAL FLORA OF SOUTH SWEDEN 315 themos (p. 319), Seseli libanotis (p. 334), Trifolium montanum (p. 301), and Viola rupestris (p. 319), and the following for which no distribution maps have been drawn up: Centaurea jacea (it might be questioned whether it is spontaneous in other places than Skane, Falbygden and the Omberg district), Fragaria viridis (richly distributed on the Central Swedish plains, especially in L'ppland, Vaster- gotland and Ostergotland), Medicago falcata (universally distributed in Skane, sou
. The continental element in the flora of south Sweden. Botany -- Sweden. THE CONTINENTAL FLORA OF SOUTH SWEDEN 315 themos (p. 319), Seseli libanotis (p. 334), Trifolium montanum (p. 301), and Viola rupestris (p. 319), and the following for which no distribution maps have been drawn up: Centaurea jacea (it might be questioned whether it is spontaneous in other places than Skane, Falbygden and the Omberg district), Fragaria viridis (richly distributed on the Central Swedish plains, especially in L'ppland, Vaster- gotland and Ostergotland), Medicago falcata (universally distributed in Skane, south-western Uppland, and especially on the Upsala plain. However, it may perhaps be questioned, whether it is spontaneous in the latter case. In the other arable districts its occurrence is surely not spontaneous). Regarding this distribution on the arable plains of certain species a pretty re- markable fact may be noticed: The plains in the eastern part of Central Sweden seem to be more rich in occurrences of steppe species than the ones of southern- most Sweden. Three species, As- perula tinctoria, Polygala comosa, and Seseli libanotis, are rather lacking in southernmost Sweden, whilst other species as Ranunculus po- lyanthemos, Trifolium montanum, and Viola rupestris are less distri- buted in the last mentioned region than in Central Sweden. Attention may also here be paid to the fact that Crepis praemorsa and Ranunculus polyanthemos, widely distributed in the herbaceous hill- sides on the Central Swedish plains, have many occurrences in the South Swedish hill districts, north-eastern Smaland and southern Ostergotland, Kolmarden, western Vastmanland, and southernmost Dalarna. This fact coincides very well with the species not being distinct steppe species and with their wide distri- bution in the Central European highlands. The cause of the numerous oc- currences of the steppe species on ^. ,,., . , , , r ^ '^'^ '^ Fig. II. 1 he whole distribution of Crepis praemor?a the arab
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