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SECONDARY SEX CHARACTERISTICS IN SPINACIA OLERACEA L.: QUANTITATIVE EVIDENCE FOR THE EXISTENCE OF AT LEAST THREE SEXUAL MORPHSVitale, Jeffrey J.; Freeman, D. Carl · American Journal of Botany · 1985
Partial Niche Separation in Spinacia oleracea L.: An Examination of Reproductive AllocationJeffrey J. Vitale and D. Carl Freeman · Evolution · 1986
The Influence of Environment on the Sex Ratio and Fitness of SpinachD. Carl Freeman and Jeffrey J. Vitale · Botanical Gazette · 1985
Patterns of Biomass Allocation in Spinacia oleracea (Chenopodiaceae) Across a Salinity Gradient: Evidence for a Niche SeparationJeffrey J. Vitale, D. Carl Freeman, Lori A. Merlotti and Michael D'Alessandro · American Journal of Botany · 1987
Leaf Types in the AraceaeThomas S. Ray · American Journal of Botany · 1987
Carpel Anatomy of the BerberidaceaeMarjorie Chapman · American Journal of Botany · 1936
Somaclonal and Gametoclonal VariationD. A. Evans, W. R. Sharp and H. P. Medina-Filho · American Journal of Botany · 1984
Biosystematics of Ruellia tuberosa L. (Acanthaceae)Robert W. Long · American Journal of Botany · 1976
Chromosome Morphology in the Genus SambucusDonald K. Ourecky · American Journal of Botany · 1970
Pollinators of Tropical Dioecious AngiospermsSusanne S. Renner and Jan Peter Feil · American Journal of Botany · 1993
Anatomical Evidence for the MenyanthaceaeAlton A. Lindsey · American Journal of Botany · 1938
Phylogeny of Amorpheae (Fabaceae: Papilionoideae)McMahon, M.; Hufford, L. · American Journal of Botany · 2004