Background In angiosperm evolution, autogamously selfing lineages have been derived
from outbreeding ancestors multiple times, and this transition is regarded as one of the most …

Although not 'a professed botanist', Charles Darwin made seminal contributions to
understanding of floral and inflorescence function while seeking evidence of adaptation by …

Pollen-ovule ratios (P/O's) of flowering plants, including grasses, reflect their breeding
system and these can be divided into five classes: xenogamy, facultative xenogamy …

This completely revised, fourth edition of Introduction to Plant Population Biology continues
the approach taken by its highly successful predecessors. Ecological and genetic principles …

I present a phenotypic model of the selection of self-fertilization that applies to any mode of
selfpollination. A novel factor, seed discounting-the loss of outcrossing maternal fitness …

The fitnesses of two phenotypes which differ in their frequency of self-fertilization are
expressed exactly in terms of various parameters, including the relative fitness of progeny …

The classic reference on weeds and invasive plants has been revised and updated. The
Third Edition of this authoritative reference provides an in-depth understanding of how …

Pollination mechanisms and pollinators are reported for a total of 137 species (75% of the
non‐abiotically pollinated flora) as they occur at three altitudinal levels (subandean scrub …

A bimodal distribution of outcrossing rates was observed for natural plant populations, with
more primarily selfing and primarily outcrossing species, and fewer species with …

The study of variability within species is important to all biologists who use genetic markers.
Since the discovery of molecular variability among normal individuals, data have been …