Viola uliginosa is an endangered species throughout its range in Central Europe. Based on
an unusual combination of morphological characters, including a reported lack of …

Comparative anatomy of 7 taxa of Viola sect. Viola distributed in N and NW of Iran was
studied. The investigated species are V. alba, V. odorata, V. sintenisii (subsect. Viola), V …

" Inferring evolutionary relationships among a collection of organisms--that is, their
relationship to each other on the tree of life--remains a central focus of much of evolutionary …

The Calcarata species complex in Viola sect. Melanium (Violaceae) is a group of species
from Italy and neighbouring islands. The complex is of considerable evolutionary interest …

Viola sect. Sclerosium contains up to seven taxa distributed from northeastern Africa to
western India. Here we used morphometry and Bayesian phylogenetic analyses of a low …

Rooted phylogenetic networks are rooted acyclic digraphs. They are used to model complex
evolution where hybridization, recombination, and other reticulation events play a role. A …

Trees are commonly utilized to describe the evolutionary history of a collection of biological
species, in which case the trees are called phylogenetic trees. Often these are reconstructed …

Abstract Viola reichenbachiana (2n= 4x= 20) and V. riviniana (2n= 8x= 40) are closely
related species widely distributed in Europe, often sharing the same habitat throughout their …

Reticulate evolutionary events are hallmarks of plant phylogeny, and are increasingly
recognized as common occurrences in other branches of the Tree of Life. However, inferring …

Simple Summary The wetland violets of Central and Northern Europe (Viola epipsila Ledeb.,
V. palustris L.) are endangered because the ranges of both species are drastically …