You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Morphological Variation within Five Angiosperm Families: Asclepiadaceae, Bromeliaceae, Melastomataceae, Piperaceae, and Rubiaceae
Amy Jean Gilmartin
Vol. 6, No. 4 (Oct. - Dec., 1981), pp. 331-345
Published by: American Society of Plant Taxonomists
Stable URL: http://www.jstor.org/stable/2418446
Page Count: 15
You can always find the topics here!Topics: Plants, Taxa, Population estimates, Species, Biological taxonomies, Population mean, Plant morphology, Angiosperms, Botany, Population size
Were these topics helpful?See somethings inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Populations of species of four families of Angiosperms were sampled in Colombia in order to quantify variation within and among populations of the same and different species within each family. Variation estimates are also compared to results with Asclepiadaceae sampled from western North America. As sampled, Melastomataceae differ significantly from Piperaceae at the family level and from Rubiaceae at the population level. Melastomataceae shows the greatest range of variation from population to family of any of the six families and Bromeliaceae has nearly as great a range. The extent of variation for Rubiaceae and Piperaceae is much less. Variation within populations of Asclepiadaceae from North America resembles that for Melastomataceae. Explanations for the lower variability and extent of variability of Rubiaceae and Piperaceae rest upon population biology theory.
Systematic Botany © 1981 American Society of Plant Taxonomists