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New localities of Arnoseris minima (L.) Schweigger et Koerte (Asteraceae) in the Podlasie region (NE Poland) are presented. The current distribution of the species was established on the basis of the authors’ floristic field studies, revised herbarium materials, published data, and unpublished sources. The collected data enabled us to revise the map of the species’ distribution in the Podlasie region...
We used chromosome data to verify the taxonomic affiliation of specimens previously recognized as Brachyactis ciliata. All analyzed plants were diploids based on x = 7 (2n = 2x = 14), the basic number characteristic for Symphyotrichum ciliatum, allowing the examined species to be shifted from the genus Brachyactis to the genus Symphyotrichum sect. Conyzopsis. The chromosome number (2n = 2x = 14) for...
A new stand of H. pilosum, a species not reported before from the territory of Poland, was found in the Polish Western Tatra Mts. It grows in numerous stands on limestone rocks on the slopes of Upłaziańska Kopka, at ca. 1400 m a.s.l. Moreover, typical form of this species, collected in the Polish Western Tatra Mts, was also found in herbaria of KRA and KRAM. These data indicate that H. pilosum is...
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