XV. Centaurea Amasiensis Bornm. 1890 (sect. Centaurium), florae Anatoliae species indescripta nova

A new species of Centaurea sect. Pseudoseridia (Asteraceae) from north-eastern Turkey 27 A new species of Centaurea sect. Pseudoseridia (Asteraceae) from north-eastern Turkey

Centaurea ziganensis Yüzb., M. Bona & İ. Genç, a new species is described and illustrated from Gümüşhane province, NE Turkey. The new species grows in rocky places on the south face of Zigana Mountains, and is closely related to C. drabifolioides, from which it differs mainly in stem, achene and phyllary appendage characters. Micromorphological structures of achenes and karyological features of...

A new species of Centaurea sect. Pseudoseridia (Asteraceae) from north-eastern Turkey

Centaureaziganensis Yüzb., M. Bona & İ. Genç, a new species is described and illustrated from Gümüşhane province, NE Turkey. The new species grows in rocky places on the south face of Zigana Mountains, and is closely related to Centaureadrabifolioides, from which it differs mainly in stem, achene and phyllary appendage characters. Micromorphological structures of achenes and karyological featur...

Surface flavonoids of Centaurea stenolepis and the local endemics Centaurea davidovii and C. parilica (Asteraceae, sect. Lepteranthus) from Bulgaria

The species of Asteraceae have been found to be a rich source of externally accumulated flavonoid aglycones. This type of compounds attracts the attention, besides for their importance as chemotaxonomic markers, also for their ecological role. In the present study, two local endemic species, Centaurea davidovii and C. parilica, and one widespread species from the same group, C. stenolepis, are ...

Tahanidae (Dipt.) d'Iran, Tabanus mofidii nova species

A new active compound from Centaurea species.

The extract containing sesquiterpene lactones of Centaurea iberica (Asteraceae) isolated was separated and a steroidal compound, which is stigmast-1,5-dien-3beta-ol, was purified. The chemical structure was established based on spectroscopic data (UV, IR, MS, 1H NMR, 13C NMR). Both the extract and the compound showed significant antioxidant and antimicrobial activities.