Abstract Plantago albicans L. (Plantaginaceae) grows in wastelands, slopes, and stony pastures, with dry sun‐exposed soils. Its seeds produce a mucilaginous coat. The main aim of this study was to evaluate intraspecific variation osmotic salinity stress response mucilage production P. seeds. relationships between stress, germination characteristics, expansion were studied eight populations . Se...

Background and aims: Botanic gardens play a fundamental role in conservation due to the maintenance of seed live plant collections. However, exchange ornamental seeds between botanic can facilitate entry alien species with invasive potential. In 2018, during visit collections National Botanical Garden (Chile), we discovered populations an herb genus Veronica (Plantaginaceae). The aim this paper...

To increase our knowledge about mating-system evolution, we need to understand the relationship between specific floral traits and mating system. Species of Collinsia (Plantaginaceae) vary extensively in mating system; this variation is associated with variation in floral morphology and development and with the timing of self-pollination. Counterintuitively, large-flowered, more outcrossing spe...

Cytogenetic characterization and determination of DNA content by flow cytometry of five species of Mecardonia Ruiz et Pavon, 1798 (Gratiolae, Plantaginaceae) was performed. This is the first study of nuclear DNA content carried out in the genus. Mitotic analysis revealed a base chromosome number x = 11 for all entities and different ploidy levels, ranging from diploid (2n = 2x = 22) to hexaploi...

UNLABELLED • PREMISE OF THE STUDY Over the past 75 Myr, successive groups of plants have entered the "oil bee pollination niche," meaning that they depend on oil-collecting bees for their pollination. The highly dissimilar numbers of plant species and bee species involved in these mutualisms imply evolutionary host switching, asymmetric mutual dependencies, and uncoupled diversification. Amon...