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Plant Biol (Stuttg) 1999; 1(6): 665-669
DOI: 10.1055/s-2007-978570
Original Papers

© Georg Thieme Verlag Stuttgart · New York

Fruit-Set Induced Changes in the Sex of Flowers in Caesalpinia calycina (Leguminosae)

P. E. Gibbs1 , G. P. Lewis2 , E. N. Lughadha2
  • 1Plant Science Laboratories, School of Environmental and Evolutionary Biology, The University, St Andrews, UK
  • 2Royal Botanic Gardens, Kew, Richmond, Surrey, UK
Further Information

Publication History

1999

1999

Publication Date:
19 April 2007 (online)

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Abstract

The proportions of hermaphrodite to staminate flowers in inflorescences of the andromonoecious species Caesalpinia calycina vary. Analysis of fruit position along the flowering rhachis, and also of the sex of floral buds in inflorescences with fruits set in different positions, indicate that fruiting success influences the sex of flowers in distal positions along the rhachis. Other reports of andromonoecy in caesalpinoid species are examined with reference to floral sex lability and the influence of fruit set.

Key words

Andromonoecy - fruit set - sex expression - Caesalpinia

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