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Carbonized plant remains recovered from the ancient city Dascyleum (Daskyleion) in the province of Balıkesir in northwestern Turkey provide an outline of several phases of plant use in archaic, Hellenistic, and medieval times. At the study site, various crop plant remains of Near Eastern agriculture, including cereals (barley, Hordeum vulgare L. and bread/durum/rivet wheat, Triticum aestivum L. / T. durum Desf. / T. turgidum L.) and pulses [bitter vetch, Vicia ervilia (L.) Willd.; grass pea, Lathyrus sativus L. / L. cicera L.; fava bean, V. faba L.; and chickpea, Cicer arietinum L.] were found. Drupaceous fruits and pyrenes of buckthorn (Frangula alnus Mill.) were also found, probably representing dyes and/or medicines used by the inhabitants of the mound. Archaeometrical analyses of the ancient buckthorn pyrenes by high performance liquid chromatography with photodiode array detector (HPLC-PDA) provide chemical evidence for traces of ancient mordants remaining until the present day. Some of the pulse seed remains retrieved from the medieval layers at the study site were found to have been infested by bruchid beetles (Bruchidae).
The abandonment of agricultural use of drained fen peatlands contributes to intensified moorshing process and, consequently, faster of wetlands areas degradation. Peat mineralization causes the eutrophication of the habitat which, along with changing humidity, enables the presence of so-called non peat-forming plants. Among the seeds and fruit present in the top layer of degraded marshy soils, there may also be carpological material originating from non peat-forming plants. 12 soil profiles from selected post-marsh meadows in western Poland were the subject of this study. The studies found seeds and fruit of 69 plant species in moorsh layers, 42 of which were peat-forming species but as many as 27 were non peat-forming plants. Of the latter the most common were, among others, Juncus effusus and Juncus conglomeratus, Urtica dioica, which were characterized by the highest quantitativeness of fruit and seeds. Among the recorded non peat-forming species almost 50% belonged to Molinio-Arrhenatheretea class, which means they were species connected with semi-natural and anthropogenic meadows occurring on mineral or organic-mineral soils but also characteristic of muck emerging from degraded fen peatlands. Peat-forming species belonged to Phragmitetea and Scheuchzerio-Caricetea nigrae classes. Studies showed that the set of fruit and seeds of non peat-forming plants found in the upper layers of peat deposit was not dependent on the thickness or type of peat from which the moorsh originated, nor was it dependent on geographical location.
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