Introduction. The extent and causes of variation in sporophyte production among British
dioicous liverworts are assessed. Methods. Reproductive attributes of dioicous species are …

Water shortage events negatively impact plant productivity, threaten ecosystem functioning,
and are predicted to increase dramatically in the coming years. Consequently, building a …

Abstract Background and Aims In dioecious plants, sexual reproduction requires close
proximity to potential mates, but clonal growth can increase this distance and, therefore …

Premise In dioicous mosses, sex is determined by a single U (female,♀) or V (male,♂)
chromosome. Although a 1: 1 sex ratio is expected following meiosis, phenotypic sex ratios …

Introduction. A well-supported pattern among dioicous bryophytes is male rarity. However,
few assessments of bryophyte sex ratios have been made across environmental gradients to …

Sexual reproduction depends on mate availability that is reflected by local sex ratios. In
species where both sexes can clonally expand, the population sex ratio describes the …

Boisselier-Dubayle et al.(1995) elaborated on the genetic variability in the three subspecies
of Marchantia polymorpha (Figure 1-Figure 12). The three subspecies [montivagans (Figure …

Background Plant communities are threatened by changing land use practices, a growing
human population, and environmental fluctuations due to climate change. Both natural and …

Many aspects of sexual and asexual reproduction have been studied empirically and
theoretically. The differences between sexual and asexual reproduction within a species …

3 Corresponding author's email: john. atwood@ mobot. org The cumulative database for this
bibliographic series is available in a searchable format online at http://www. tropicos. org …