Seed production and patterns of sex allocation were studied in female and hermaphroditic
plants in two gynodioecious populations of Geranium sylvaticum (Geraniaceae). Females …

We determined female frequency of 23 populations of the gynodioecious Geranium
sylvaticum (Geraniaceae) in Finland. We compared our results to previous results on this …

Differences between plant sex morphs in pollen or resource availability may affect their
relative fitness and thereby the sex ratio of dimorphic species. In gynodioecious species, in …

Background and Aims For the maintenance of gynodioecy (ie the coexistence of female and
hermaphroditic plants), females need to compensate for the lack of pollen production …

Variation in sex expression, flowering pattern, and seed production was studied in the self‐
compatible perennial herb Geranium maculatum in Illinois and Indiana. In a survey of eight …

Abstract Background and Aims Plants exhibit a variety of reproductive systems where
unisexual (females or males) morphs coexist with hermaphrodites. The maintenance of …

Flowers of Geranium sylvaticum L. are normally hermaphroditic and have 10 stamens. Some
flowers have reduced non-functional anthers or do not have anthers at all; these flowers are …

The selective maintenance of gynodioecy depends on the relative fitness of the male‐sterile
(female) and hermaphroditic morphs. Females may compensate for their loss of male fitness …

One of the major evolutionary trends in flowering plants is the evolution of unisexual flowers
(male or female) from perfect flowers. This transition has occurred repeatedly in many taxa …

Abstract Background and Aims Gynodioecy, the co-occurrence of female and
hermaphroditic individuals, is thought to be an intermediate step between hermaphroditism …