Novedades para la flora soriana, 2. Plantas arvenses, ruderales o neófitas

Continuing with the series of publications on the flora of the province of Soria (Spain) that precedes the review and reedition of the Floristic Catalogue of Soria (SEGURA & al., 2000), 25 taxa are incorporated, corresponding to vascular plants, which had not previously been recorded. A part of them are neophyte species from America or southern Africa that have recently appeared; others are weed, ruderal or road flora of paleotempered origin (Latecircunmediterranean Iranoturanian). All of them provide with an enlargement of their known distribution area, or with an improvement in the knowledge of their means and paths of expansion. The recent creation of big communication infrastructures su…