Tagetes tenuifolia, Thuja occidentalis, Trifolium badium, Vaccinium corymbosum and Viburnum
rhytidophyllum. All added and deleted taxa are commented on. Of the total number of …

There is an ever–increasing amount of cytogenetic data in plant sciences obtained by cytometric
techniques, particularly flow cytometry. However, as these methods determine nuclear …

Sheep grazing was investigated as an alternative to traditional management of meadows in
the Krkonoše Mts. Until the second World War these meadows were mown in mid‐summer …

Background and Aims Hieracium sub-genus Pilosella (hawkweeds) is a taxonomically
complicated group of vascular plants, the structure of which is substantially influenced by frequent …

Background and Aims Despite extensive study of polyploidy, its origin, and ecogeographical
differences between polyploids and their diploid progenitors, few studies have addressed …

Background and Aims Pilosella officinarum (syn. Hieracium pilosella) is a highly structured
species with respect to the ploidy level, with obvious cytogeographic trends. Previous non-…

Gametophytic apomixis (asexual seed formation without syngamy of female and male
gametes) is a highly interesting mechanism for researchers in plant biotechnology, genetics, …

Ecological theory posits that temporal stability patterns in plant populations are associated
with differences in species' ecological strategies. However, empirical evidence is lacking …

Flow cytometric and karyological investigations were performed on the closely related
taxaElytrigia repens andE. intermedia (Poaceae: Triticeae) from the Czech Republic. DNA-…

Vertical differentiation in root placement is one of the potential mechanisms of plant niche
differentiation. It can be due to the remarkable plasticity of roots in response to nutrients and …