Titre du document / Document title

Dioecy in Honkenya peploides var. major (Caryophyllaceae)

Auteur(s) / Author(s)

TSUKUI T. ; SUGAWARA T. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

Hirosaki univ., fac. sci., dep. biology, Hirosaki 036, JAPON

Résumé / Abstract

Sexual difference and pollination system in Honkenya peploides var. major were investigated. The present analyses indicate that sex expression of this plant is functionally dioecious, rather than androdioecious, as described previously. Its flowers are largely pollinated by small bees, hover-flies, flies, and ants. Female flowers were morphologically characterized by conspicuously longer styles and smaller petals, and had no pollen grains, while male flowers had shorter styles, larger petals, and longer filaments, and produced viable pollen grains. Although the male flowers possess many ovules in an ovary, they set fruits at a very low frequency in natural conditions and did not produce fruits by pollination experiments (...)

Revue / Journal Title

Shokubutsugaku Zasshi   ISSN 0006-808X   CODEN SHOZAK 

Source / Source

1992, vol. 105, n^o1080, pp. 615-624 (11 ref.)

Langue / Language

Anglais
Revue : Multilingue

Editeur / Publisher

Nippon Shokubutsu Gakkai, Tokyo, JAPON  (1887-1992) (Revue)

Mots-clés anglais / English Keywords

Dioecy ; Floral biology ; Sexual differentiation ; Insect pollination ; Morphology ; Sexual dimorphism ; Flowering ; Fructification ; Biological evolution ; Japan ; Asia ; Perennial plant ; Herbaceous plant ; Caryophyllaceae ; Dicotyledones ; Angiospermae ; Spermatophyta ;

Mots-clés français / French Keywords

Dioécie ; Biologie florale ; Différenciation sexe ; Pollinisation entomophile ; Morphologie ; Dimorphisme sexuel ; Floraison ; Fructification ; Evolution biologique ; Japon ; Asie ; Plante pérenne ; Plante herbacée ; Caryophyllaceae ; Dicotyledones ; Angiospermae ; Spermatophyta ; Honkenya peploides var. major ;

Mots-clés espagnols / Spanish Keywords

Dioecia ; Biología floral ; Diferenciación sexual ; Polinización entomófila ; Morfología ; Dimorfismo sexual ; Floración ; Fructificación ; Evolución biológica ; Japón ; Asia ; Planta perenne ; Planta herbácea ; Caryophyllaceae ; Dicotyledones ; Angiospermae ; Spermatophyta ;

Localisation / Location

INIST-CNRS, Cote INIST : 716, 35400003695914.0090