While homoploid hybridization was viewed as maladaptive by zoologists, the possibility that
it might play a creative role in evolution was explored and debated by botanists during the …

Seed dispersal and the subsequent recruitment of new individuals into a population are
important processes affecting the population dynamics, genetic diversity and spatial genetic …

Natural hybrid zones provide a valuable tool to study introgressive hybridization, because
they can contain a wide variety of genotypes that result from many generations of …

Hybrids between the acid‐loving species Rhododendron ferrugineum and the basic soil
species Rhododendron hirsutum occur on soils of intermediate pH in the European Alps …

The patterns of hybridization and asymmetrical gene flow among species are important for
understanding the processes that maintain distinct species. We examined the potential for …

Species of Orchidaceae are under severe threat of extinction mainly due to overcollection
and habitat destruction; accurate identification of orchid species is critical in conservation …

Intrinsic reproductive barriers among the species of Petunia are weak and genetic isolation
is obtained mainly by geographical separation and ecological diversification. The Serra do …

Nonrandom species–species associations may arise from a range of factors, including
localized dispersal, intra‐and interspecific interactions and heterogeneous environmental …

Reproductive isolation is of fundamental importance for maintaining species boundaries in
sympatry. In orchids, the wide variety of pollination systems and highly diverse floral traits …

Summary 1 In long‐lived, terrestrial orchids, strong aggregation of adults and recruits within
populations and pronounced spatial association between recruits and adults can be …