1917

Seed Morphology of Some Barbarea (Brassicaceae) Taxa

The seed macro- and micromorphologies of four taxa (Barbareaauriculata Hausskn. ex Bornm. var. auriculata, Barbarea trichopodaHausskn. ex Bornm., Barbarea verna (Mill.) Asch. and Barbareavulgaris R. Br. subsp. vulgaris) belonging to Barbarea R. Br. wereinvestigated with scanning electron microscopy (SEM). Significance ofseed features as taxonomic characters including seed color, shape,winged, measures, seed coat pattern were determined. Two coatpatterns were observed; irregularly-reticulate and tuberculatereticulate, and three shapes were distinguished; broadly oblong,oblong and broadly elliptic. The results showed that the morphologicalcharacteristics of seed could be contribute as criteria to distinguishtaxa. This is the first SEM study about seed surface of any Barbareataxa.

Bazı Barbarea (Brassicaceae) Taksonlarının Tohum Morfolojisi

Barbarea cinsine ait olan dört taksonun (Barbarea auriculata var. auriculata, Barbarea trichopoda, Barbarea verna ve Barbarea vulgaris subsp. vulgaris) tohum morfolojileri, taramalı electron mikroskobu (SEM) ile incelendi. Bunların taksonomik karakter olarak önemleri belirlendi. Makro- ve mikromorfolojik karakter olarak tohum rengi, şekli, ölçüsü ve yüzey modeli incelendi. Düzensizretikulat ve tüberküllü-retikulat olarak iki tohum yüzeyi modeli ve geniş oblong, oblong ve geniş eliptik olarak üç tohum şekli tespit edildi. Sonuçlar Barbarea cinsinde tohumların morfolojik karakterlerinin taksonların ayrımına katkı sağlayabileceğini göstermiştir.

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