gynodioecious


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gynodioecious

[¦gīn·ō·dī′ē·shəs]
(botany)
Dioecious but with some perfect flowers on a plant bearing pistillate flowers.
References in periodicals archive ?
11a Branches unarmed; plants monoecious, gynodioecious, or polygamous; when gynodioecious corolla tubes in female florets short (1/3 of corolla length) Gochnatia 11b Branches modified in thorns; plants gynodioecious, corolla tubes of female florets long and narrow (up to 2/3 of corolla length) Cyclolepis 9b Capitula with marginal florets bilabiate to sub-bilabiate and central florets tubular.
Shrubs branched, gynodioecious, short branches modified in thorns.
Shrubs or subshrubs, rarely trees, monoecious, gynodioecious, or polygamous.
production biases in monoecious, dioecious, and gynodioecious plants
Some of the SC ornithophilous species (the gynomonoecious, gynodioecious, and dichogamous species) require at least interflower pollen transfer.
Evolution of Rhaphithamnus venustus (Verbenaceae), a gynodioecious hummingbird-pollinated endemic of the Juan Fernandez Islands, Chile.
In gynodioecious species, fruit dispersal is more effective for females than for hermaphrodites (Bawa, 1980; Givnish, 1980).
Wolfe and Shmida (1996) found no spatial segregation of the sexes in their study of the gynodioecious Ochradenus baccatus.
The preceding argument implies not that the hermaphroditic and pistillate flowers of gynodioecious species should not be dimorphic [there are known cases where they are dimorphic (Lloyd & Webb, 1977)] but, rather, that the dimorphism is more constrained than it would be in comparable wind-pollinated plants (see below).
Inbreeding avoidance is postulated as the primary driving force behind the evolution of dioecy, and most species that evolved dioecy principally via IA appear to have arisen from the gynodioecious route.
Pollinator visitation, floral display, and nectar production of the sexual morphs of a gynodioecious shrub.